Wijewardena, S. G. E. H.; Weerabahu, W. M. S. K.; Nanayakkara, L. D. J. F.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
Edirisuriya, A. W.; Weerabahu, W. M. S. K.; Wickramarachchi, R.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)