1. Data Structures and Algorithms
2. Computer Graphics
3. Data Communication and Networks
4. Computer Architecture and Organization
5. Multimedia Systems Development
6. Cyber Security
7. Formal Methods and Software Verification
8. Deductive Reasoning and Logic Programming
9. Theory of Automata
10. Theory of Computability and Complexity
11. Wireless Communication
12. Visual Programming

1. Improving the quality of Part of Speech (POS) tagger for Sinhala Language
2. Development of Software and Hardware Systems to eliminate digital divide within illegible.
3. Use of Deep Unsupervised Neural Networks for Human Gesture Recognition
4. Natural Language Processing and Recognition
5. Text mining
6. Computational Mathematics
7. Image processing and Computer Vision

Other Representations and Memberships
1. Representative of the LEARN Management Committee (From October 2005 to 31 st December 2010).
2. Representative of the UGC Standing Committee on Computing from 2010 to January 2016.
3. Member of the Board of Governors appointed by the Honorable President of Sri Lanka for a period of 3 years starting form 1 st January 2016.
4. Member of the Senate of the university.
5. Member of the Curriculum, Learning and Teaching Evaluation Committee of the university.
6. Member of the Ethics Review Committee of the university.

1. B. M. Brown and N. G. J. Dias, The HELP type Integral Inequalities for 2nth order differential operators, International Series of Numerical Mathematics, 1997, Vol.123, p 179-192.[PDF]
2. M. Benammar, C. Bennewitz, M. J. Beynon, B. M. Brown, N. G. J. Dias, W. D. Evans, W. N. Everitt, V. G. Kirby and L. L. Littlejohn, A catalogue of HELP and HELP-type integral and series inequalities, Recent Progress in Inequalities: Mathematics and Its Applications, 1998, Vol. 430, p 127-160.
3. K. H. Kumara, N. G. J. Dias and H. Sirisena, Automatic segmentation of given set of Sinhala text into syllables for speech synthesis, Journal of Science of University of Kelaniya, 2007, p 53-62.
4. R. I. P. Wickramasinghe, K. H. Kumara and N. G. J. Dias, Practical issues in the development of TTS and SR for the Sinhala language, Journal of Science of University of Kelaniya, 2007, p 63-72. [PDF]
5. K. H. Kumara and N. G. J. Dias, An alternative approach for Sinhala speech synthesis, Proceedings of the 4 th International Student Conference on Innovations at Ibaraki University Japan, 2008, p 190-193.
6. P. G. N. Priyadarshani and N. G. J. Dias, 2010, Mel Frequency Ceptral Coefficients and Vector Quantization for Speaker Identification, ICTer2010 Conference Proceedings, ISBN: 978-1- 4244-9039- 4, IEEE Catalog Number: CFP1086L-PRT, p 24.
7. P. G. N. Priyadarshani and N. G. J. Dias, 2011, Automatic segmentation of separately pronounced Sinhala words into syllables, Journal of Science of University of Kelaniya, Vol. 6, 2011, p 35-44.[PDF]
8. M.K.D.K. Piyaratne, N. G. J. Dias and N.S.B.M. Attapattu, 2012, Linear model based software approach with ideal amino acid profiles for least-cost poultry ration formulation, Information Technology Journal, Vol. 11, Issue 7: 788-793, ISSN 1812-5638. Publisher: Asian Network for Scientific Information.
9. P. G. N. Priyadarshani, N. G. J. Dias and Amal Punchihewa, 2012, Dynamic Time Warping based speech recognition for isolated Sinhala words, 55th International Midwest Symposium on Circuits and systems (IEEE MWSCAS 2012) Proceedings, ISSN 978-1- 4673-2527- 1, p892-895. [PDF]
10. P. G. N. Priyadarshani, N. G. J. Dias and Amal Punchihewa, 2012, Genetic algorithm approach for sinhala speech recognition, 55th International Midwest Symposium on Circuits and systems (IEEE MWSCAS 2012) Proceedings, ISSN 978-1- 4673-2527- 1, p896-899. [PDF]
11. W. A. C. Weerakoon, A. S. Karunanada and N. G. J. Dias, Modeling Memory as Conditional Phenomena for aNew Theory of Computing, Proceedings of the 8 th Annual Sessions 2012 , Sri Lanka Association for Artificial Intelligence (ALAAI).[PDF]
12. Weerakoon W. A. C., Karunanda A. S. and N. G. J. Dias (2013), A tactics memory for a new theory of computing, The 8th International Conference on Computer Science & Education (ICCSE 2013),  ISBN:978-1- 4673 4462- 3, IEEE Catalog Number:CFP1389F-CDR, SaB1.1, pp. 153-158, April 26-28, 2013, Colombo, Sri Lanka. [PDF]
13. A.J.P.M.P Jayaweera and N.G.J Dias, 2014, Hidden Markow Model Based Part of Speech Tagger for Sinhala Language, Proceedings of the International Conference on Natural Language Processing and Cognitive Computing, pp. 15-22, 10-12 March 2014, Manipur, India and International Journal on Natural Language Computing (IJNLC) Vol. 3, No.3, June 2014. Pages 9-23.
14. A.J.P.M.P Jayaweera and N.G.J Dias, 2014, Part of Speech Tagger for Natural Language Processing of Sinhala Language, Proceedings of NITC 2014, Sri Lanka. Pages 186-193.
15. B.M.T. Kumarika and N.G.J Dias, 2014, Extending Browser Capabilities to Share Browsing Information between different Browser Types and Computers, Proceedings of the International Conference on Computational Intelligence and Information Technology (CIIT 2014), Mumbai, India and Computer Application and Signal Processing 2014, ISBN: 978-981- 09-2578- 9, doi: 10.3850/978-981- 09-1137-9_P005. Pages 37-46.
16. B.M.T. Kumarika and N.G.J. Dias, 2014, Smart web content bookmarking with ANN based key phrase extraction algorithm, Proceedings of the 14th International Conference on Advances in ICT for Emerging Regions, ISBN: 978-1- 4799-7732- 1, p228-234.
17. A.J.P.M.P. Jayaweera and N.G.J. Dias, 2015, RESTFul POS tagging WEB Service for Sinhala language, Proceedings of the 15th International Conference on Advances in ICT for Emerging Regions, ISBN: 978-1- 4673- 9439- 0, IEEE Catalog Number:CEP1586L-CDR, p9.
18. A.J.M.A.P. Bandara and N.G.J. Dias, 2015, Optimizing Neural Network Architectures for Image Recognition Using Genetic Algorithms, Proceedings of the 15th International Conference on Advances in ICT for Emerging Regions, ISBN: 978-1-4673-9439- 0, IEEE Catalog Number: CEP1586L-CDR, p14.
19. M. K. B. Ashan and N. G. J. Dias, Recognition of Vehicle License Plate using MATLAB, European International Journal of Science and Technology, Vol 5, No. 6, August 2016.
20. W. A. C. Weerakoon, A. S. Karunananda, and N.G.J. Dias, Six-State Continuous Processing Model for a New Theory of Computing, Proceedings of SLAAI International Conference on Artificial Intelligence (SLAAI-ICAI-2018), Moratuwa, Sri Lanka, Communications in Computer and Information Science (CCIS) series of Springer (Scopus Indexed), ISSN: 1865-0929, 2019, vol 890, pp 32–48. https://doi.org/10.1007/978-981-13-9129-3_3.
21. C Weerakoon, A Karunananda, N Dias. "Formal Verification of Conditionally Evolving Memory." International Journal of Computer Engineering and Information Technology 11, no. 11 (2019): 243-257.
22. Weerakoon C., Karunananda A., Dias N. (2019) Six-State Continuous Processing Model for a New Theory of Computing. In: Hemanth J., Silva T., Karunananda A. (eds) Artificial Intelligence. Communications in Computer and Information Science, Vol 890. Springer, Singapore (SCOPUS Indexed).
23. Wijewickrema, M., Petras, V., & Dias, N. (2019). Selecting a text similarity measure for a content-based recommender system: A comparison in two corpora. The Electronic Library, 37(3), 506-527. doi:10.1108/EL-08-2018-0165.
24. Weerakoon, C., Karunananda, A. & Dias, N. Human-mind-inspired processing model for computing. Mind Soc (2020). https://doi.org/10.1007/s11299-020-00236-2,
    Springer Nature Switzerland AG. Part of Springer Nature.
25. Gamage, H.T.M., Weerasinghe, H.D. & Dias, N.G.J. A Survey on Blockchain Technology Concepts, Applications, and Issues. SN COMPUT. SCI. 1, 114 (2020). https://doi.org/10.1007/s42979-020-00123-0. [PDF]
26. Dhammika Pieris, MC Wijegunesekera, NGJ Dias. An Improved Generic ER Schema for Conceptual Modeling of Information Systems, (IJACSA) International Journal of Advanced Computer Science and Applications (IJACSA), Vol. 11, No. 6, 2020, Journal arXiv preprint arXiv:2002.12482. [PDF]

Abstracts

1. R. I. P. Wickramasinghe and N. G. J. Dias, Translation of computer algorithms into Pascal programs, Proceedings of the Annual Research Symposium 2004, FGS - University of Kelaniya, p 63.
2. K. H. Kumara and N. G. J. Dias, Sinhala Numeric Reader: An interactive software to convert a given number into strings with synthetic sounds, Proceedings of the Annual Research Symposium 2004, FGS - University of Kelaniya, p 64.
3. R. I. P. Wickramasinghe, K. H. Kumara and N. G. J. Dias, An Interactive Sinhala medium courseware for teaching secondary school Statistics, Proceedings of the Annual Research Symposium 2005, FGS - University of Kelaniya, p 80.
4. R. I. P. Wickramasinghe, K. H. Kumara and N. G. J. Dias, Translation of a given simple English sentence into its equivalent Sinhala using a Speech Synthasizer, 10 th International conference on Sri Lanka Studies, 2005, p 96.
5. K. H. Kumara, L. Munasinghe, K. D. Jayasuriya, N. G. J. Dias, C. H. de Silva and S. R. D. Kalingamudali, Design and implementation of a Web-based Faculty Information System, Proceedings of the Annual Research Symposium 2006, FGS - University of Kelaniya, p 66.
6. K. H. Kumara, N. G. J. Dias and H. Sirisena, A tool for automatic segmentation of a given Sinhala text into Syllables for Speech synthesis and Speech recognition, Proceedings of the Annual Research
   Symposium 2006, FGS - University of Kelaniya, p 67.
7. K. H. Kumara, N. G. J. Dias and R. I. P. Wickramasinghe, MBROLA Formatted Diphone Database for Sinhala Language, Proceedings of the Annual Research Symposium 2007, FGS - University of Kelaniya, p 137.
8. K.H.Kumara and N.G.J.Dias (2008), A Basic Unit for Sinhala Speech Synthesis, Proceedings of the Second International Symposium, Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka, p 184.
9. Nalin Warnajith, Sihan Wijewickrama, N. G. J. Dias (2008), Gamunu Dassanayake and Satoru Ozawa, The use of templates to manage on-line Discussion Forums, Proceedings of the 4 th International Student Conference on Innovations at Ibaraki University Japan, p 264.
10. Gamunu Dassanayake, Ravindra Jayasekera, Vaise Patu, N. G. J. Dias, Sandun Fernando, Sihan Wijewickrama, Nalin Warnajith, Atsushi Minato and Sataru Ozawa (2008), Teaching using information and communication technology: Do University and High school teachers have the confidence? – A case study from Sri Lanka, Proceedings of the 4 th International Student Conference on Innovations at Ibaraki University Japan, p 265.
11. M. K. D. K. Piyaratne, N. G. J. Dias and M. attapattu, Development of a Linear-model based Computer Software foe Least Cost Poultry ration formulation, Annual Research Symposium 2008, FGS - University of Kelaniya.
12. A. J. P. M. P. Jayaweera and N. G. J. Dias, Interactive communication platform, Annual Research Symposium 2008, FGS - University of Kelaniya.
13. A. V. L. Chandima and N. G. J. Dias, An inventory control system with intelligent demand forecasting facility, Annual Research Symposium 2008, FGS - University of Kelaniya.
14. K.H.Kumara and N.G.J.Dias, 2009, A tool for automatic derivation of phone transitions for the crearion of a diphone database for Sinhala Text to Speech Synthasis, Annual Research Symposium 2009, FGS - University of Kelaniya, p 122.
15. P.G.N.Priyadarshani and N.G.J.Dias, 2009, A study on Linux Live CD Re-mastering, Annual Research Symposium 2009, FGS- University Of Kelaniya, p 120.
16. N.G.J.Dias, K.H.Kumara and D.D.M.Dolawaththa, 2009, An analysis of sound parameters for prosodic modeling in Sinhala Text-to- Speech synthesis, Annual Research Symposium 2009, FGS - University of Kelaniya, p 126.
17. D.D.M.Dolawaththa and N.G.J.Dias, 2009, Design and Implementation of new Computer Software for the Centre for Open and Distance learning, Annual Research Symposium 2009, FGS - University of Kelaniya, p 125.
18. N.G.J.Dias and P.L.A.U.Rathnasekara, 2009, Design and Implementation of an efficient SMS server, Annual Research Symposium 2009, FGS - University of Kelaniya, p 124.
19. P.G.N.Priyadarshani and N.G.J.Dias, MFCC Based Text-Dependent Speaker Identification Using Vector Quantization, 12th International Conference on Sri Lanka Studies 2010, p 240.
20. N.G.J.Dias and P.L.A.U.Rathnasekara, An efficient short message service (SMS) server, 12th International Conference on Sri Lanka Studies 2010, p 250.
21. D.D.M. Dolawatta, N.G.J.Dias and K.H.Kumara , A Study of Prosodic features of folk poems in Sinhala, 12th International Conference on Sri Lanka Studies 2010, p 266.
22. D.D.M.Dolawaththa, N.G.J.Dias and K.H.Kumara 2010, Classification and Regression Trees (CART) based Data Driven Approach for Prosody Duration Modeling in Sinhala Language, Annual Research Symposium 2010, FGS - University of Kelaniya
23. P. G. N. Priyadarshani, N. G. J. Dias and H. Sirisena, Automatic Syllabification of Acoustic signals in Sinhala Words, Accepted for presentation at the ICTer Conference to be held in Colombo September/October 2010.
24. P.G.N.Priyadarshani and N.G.J.Dias, Genetic algorithm approach for sinhala speech recognition, Annual Research Symposium 2011, FGS - University of Kelaniya, p 128. [PDF]
25. A. J. P. M. P. Jayaweera and N. G. J. Dias, Part of speech (pos) tagger for sinhala language, Annual Research Symposium 2011, FGS - University of Kelaniya, p 81.
26. A. J. P. M. P. Jayaweera and N. G. J. Dias, Evaluation of stochastic based tagging approach for sinhala language, Annual Research Symposium 2012, FGS - University of Kelaniya, p 77.
27. A. M. D. Chandrasena and N. G. J. Dias, An Android Application in Searching Hospitals, Annual Research Symposium 2012, FGS - University of Kelaniya, p 27.
28. K. K. D. P. C. Alexander and N. G. J. Dias, A Plug-in for Joomla which plays Videos and Audios without External Links, Annual Research Symposium 2012, FGS - University of Kelaniya, p 14.
29. W. G. D. M. Samankula and N. G. J. Dias, 2013, Designing an automated speech recognition system to recognize frequently used words in Sinhala, 2nd International Conference on Social Sciences (ICSS 2013), November 22-23, 2013, University of Kelaniya, Sri Lanka, p 55.
30. R. P. T. H. Gunasekera, N. G. J. Dias and M. C. Wijegunasekara, 2013, Performance of k-mean data mining algorithm with the use of WEKA-parallel, Annual Research Symposium 2013, FGS - University of Kelaniya, p 90-91.
31. W. G. D. M. Samankula and N. G. J. Dias, 2013, Designing an Automatic Speech Recognition System to recognize frequently used sentences in Sinhala, Annual Research Symposium 2013, FGS - University of Kelaniya, p 62.
32. W. G. D. M. Samankula and N. G. J. Dias, 2014, Comparative Study of Feature Extraction Methods for Speaker Independent Sinhala Speech Recognition Systems, Symposium Proceedings, HETC Symposium - 2014, Colombo, p 51.
33. W. G. D. M. Samankula and N. G. J. Dias, 2014, Triphone Clustering for High Accuracy Acoustic Modeling in Continuous Speech Recognition in Sinhala, Annual Research Symposium 2014, FGS - University of Kelaniya, p 117.
34. I. A. Wijethunga and N. G. J. Dias, 2014, A Sales Management System using Cloud Computing Technology, Annual Research Symposium 2014, FGS - University of Kelaniya, p 112.
35. A. J. P. M. P. Jayaweera and N. G. J. Dias, 2014, Unknown Words Analysis in POS tagging of Sinhala Language,Proceedings of the 14th International Conference on Advances in ICT for Emerging Regions, ISBN: 978-1- 4799-7732- 1, p270.
36. R.P.T.H. Gunasekara, M.C. Wijegunasekara and N. G. J. Dias, 2014, Comparison of major clustering algorithms using Weka tool, Proceedings of the 14th International Conference on Advances in ICT for Emerging Regions, ISBN: 978-1-4799-7732- 1, p272.
37. A. J. P. M. P. Jayaweera and N. G. J. Dias, 2015, Statistical Machine Learning Using HMM for Part of Speech tagging, Proceedings of the Symposium on Language Technology for South Asia, p21-23.
38. R.P.T.H. Gunasekara, M.C. Wijegunasekara and N. G. J. Dias, 2015, A Study on Clustering Algorithms in Data Mining using Weka Tool, Proceedings of the 2nd Ruhuna International Science & Technology Conference (RISTCON - 2015), University of Ruhuna, ISSN: 1391-8796, p106.
39. R.P.T.H. Gunasekara, M.C. Wijegunasekara and N. G. J. Dias, 2015, A Study on How to Improve the Performance of K-Mean Data Mining Algorithm in a Parallel Environment, Proceedings of the 2nd International Conference on Trends in Multidisciplinary Business and Economic Research (TMBER-2015), Bangkok Silom, Thailand, ISBN: 978-969- 9948-11- 4, p42 and Journal of Engineering and Applied Sciences Vol. 9, Issue 10, 2014, 441 - 446, doi:10.3923/jeasci.2014.441.446.
40. W.A.C. Weerakoon, A.S. Karunananda and N.G.J. Dias, 2015, Conditionally evolving memory for computers, Proceedings of the 15th International Conference on Advances in ICT for Emerging Regions, ISBN: 978-1- 4673-9439- 0, p271, IEEE Catalog Number: CEP1586L-CDR.
41. W.A.C. Weerakoon, A.S. Karunananda and N.G.J. Dias, Enhancing the Functionality of Rule-Based Expert Systems, 4th Int'l Conference on Advances in Engineering Sciences & Applied Mathematics (ICAESAM'2015) Kuala Lumpur (Malaysia), Dec. 8-9, 2015, p95.
42. W.G.D.M. Samankula, N.G.J. Dias, Hardware Implementation Of A Hidden Markov Model Based, Speaker Independent, Continuous, Sinhala Speech Recognition System, Proceedings of International Postgraduate Research Conference 2015, University of Kelaniya, December, 2015, p195.
43. W.A.C. Weerakoon, A.S. Karunananda and N.G.J. Dias, A Plug-in to Boost the Behaviour of a Rule-Based Expert System More Like a Human, Proceedings of International Postgraduate Research Conference 2015, University of Kelaniya, December, 2015, p153.
44. B. M. T. Kumarika, N.G.J. Dias, Deep Unsupervised Pre-trained Neural Network for Human Gesture Recognition, Proceedings of International Postgraduate Research Conference 2015, University of Kelaniya, December, 2015, p178.
45. M.P. Jayaweera, N.G.J. Dias, Application of Witten-Bell Discounting Techniques for Smoothing in Part of Speech Tagging Algorithm for Sinhala Language, Proceedings of the International Postgraduate Research Conference 2015, University of Kelaniya, December 2015, p167.
46. M. K. B. Ashan and N. G. J. Dias, Detection of Vehicle License Plates Using Background Subtraction Method, Kelaniya Conference on Advances in Computing and Technology (KICACT 2016), Faculty of Computing and Technology, University of Kelaniya, Sri Lanka, ISBN 978-955- 704-013- 4, p04-05.
47. H. Gunasekara, M. C. Wijegunasekara and N. G. J. Dias, Optimization of SpdK-means Algorithm, Proceedings of the International Postgraduate Research Conference 2016, University of Kelaniya, December 2016, p24.
48. W.A.C. Weerakoon, A.S. Karunananda and N.G.J. Dias, New Processing Model for Operating Systems, Proceedings of the International Postgraduate Research Conference 2016 (IPRC 2016), University of Kelaniya, December 2016, p29.
49. M. K. B. Ashan and N. G. J. Dias, An improved method to isolate Vehicle License Plate, Proceedings of the International Postgraduate Research Conference 2016 (IPRC 2016), University of Kelaniya, December 2016, p34.
50. M. Jayaweera and N. G. J. Dias, Comparison of Part of Speech tagger for Sinhala Language, Proceedings of the International Postgraduate Research Conference 2016 (IPRC 2016), University of Kelaniya, December 2016, p35.
51. D. S. Dias and N. G. J. Dias, A Simple Machine Learning approach for Identifying Promotional Short Message Service (SMS) Messages, Kelaniya Conference on Advances in Computing and Technology (KICACT 2017), Faculty of Computing and Technology, University of Kelaniya, Sri Lanka, ISBN 978-955-704-048-6, p05.
52. W. S. C. Perera and N. G. J. Dias, Applying intelligent speed adaptation to a road safety mobile application—DriverSafeMode, Kelaniya Conference on Advances in Computing and Technology (KICACT 2017), Faculty of Computing and Technology, University of Kelaniya, Sri Lanka, ISBN 978-955-704-048-6, p10.
53. R. M. N. S. Samarasinghe and N. G. J. Dias, Machine Learning Dashboard for Aviation Fuel Optimization, Kelaniya International Conference on Advances in Computing and Technology (KICACT 2017), Faculty of Computing and Technology, University of Kelaniya, Sri Lanka, July 2017, ISBN 978-955-704-048-6, p35.
54. U. G. S. M. Siriweera and N. G. J. Dias, , Online Train Ticket Reservation System, Kelaniya Conference on Advances in Computing and Technology (KICACT 2017), Faculty of Computing and Technology, University of Kelaniya, Sri Lanka, ISBN 978-955-704-048-6, p38.
55. R. P. T. H. Gunasekara, M. C. Wijegunasekara and N. G. J. Dias, 2017, Comparison of the Performances of SpdK-means Algorithm and Optimized SpdK-means Algorithm for Clustering Data points, International postgraduate research Conference 2017, FGS, University of Kelaniya, p25.
56. D. S. Dias and N. G. J. Dias, 2018, Forecasting Monthly Ad Revenue from Blogs using Machine Learning, Proceedings of the Third International Conference on Advances in Computing and Technology (ICACT 2018), Faculty of Computing and Technology, University of Kelaniya, Sri Lanka, July 2018, ISBN 978-955-704-088-2, p19.
57. 58. Dulan S. Dias, Madhushi D. Welikala and N. G. J. Dias, 2018,Identifying racist social media comments in sinhala language using text analytics models with machine learning, Proceedings of the International Conference on Advances in ICT for Emerging Regions (ICTer 2018), University of Colombo School of Computing, Sri Lanka, 27 th – 28 th September 2018, ISBN 978-955-704-048-6, p10. [PDF]
58. 59. Dhammika Peris, M. C. Wijegunasekera and N. G. J. Dias. (2019) ER to Relational Model Mapping: Information Preserved Generalized Approach. International Postgraduate Research Conference 2019, University of Kelaniya, Sri Lanka.

Books and Chapters of Books

1. Complex Numbers, S.Godege and Brothers, 2009, ISBN 978-955- 30-0335- 5.
2. Statics – I, Sadeepa Publishing House, 2009, ISBN 978-955- 661-346- 9
3. Chapter 6 - Relational Algebra, Information Systems in Computer Science - Student Notes, 5 th Working ‏‏‏Party in Computer Science under Ruhuna-Keele link Progamme, 1988, p 113 – 139.
4. Chapter 4 – Search Trees and the Prolog Search Strategy, Student Notes on Intelligent Knowledge Based Systems - Pa‏rt I : Introduction to Prolog, 6 th Working ‏‏‏Party in Computer Science under Ruhuna-Keele link Progamme, 1989, p 37 – 46.
5. Chapter 8 – Prolog and Logic, Student Notes on Intelligent Knowledge Based Systems - Pa‏rt II: Applications of Prolog to IKBS, 6 th Working ‏‏‏Party in Computer Science under Ruhuna-Keele link Progamme, 1989, p 145 – 170.
6. Solutions for Part 2 Chapter 8, Tutor Notes on Intelligent Knowledge Based Systems - Pa‏rt I: Introduction to Prolog, 6 th Working ‏‏‏Party in Computer Science under Ruhuna-Keele link Progamme, 1989, p 44 – 52.
7. Chapter 3 – Information Systems, General Information Technology (GIT) – Supplementary Material to Teacher Resource Guide, Prepared by a Working group under the IT Advisory Group of the Ministry of Education, 2004, p 82 - 90.
8. Statics – A Teachers Manual prepared for the G.C.E. (A/L) Combined Mathematics subject under the “Education for Knowledge Society Project (EKSP)” of the Ministry of Education, Isurupaya, Sri Lanka, 2009.
9. Computer Literacy Handbook (I am the chief editor of this book and also an author of some parts of this book), Publication of University of Kelaniya, 2009, ISBN: 978-956-9044- 89-5.