Weerasinghe, W. P. M. C. N.; Jayasundara, D. D. M.(4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
Sachithra, S. A. L.; Liyanage, U. P.; Wijeyaratne, W. M. D. N.(4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
Herath, H. M. R. D. S.; Varathan, N.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)