Nirmani, L. P. T.; Deeyamulla, M. P.(International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
Chandrasiri, H. M. H. B.; Doole, F. T.; Subramanium, S. S.(International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)