Hakmanage, N. M.; Jayasundara, D. D. M.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
Himahansi, K. D. M.; Mallawa-Arachchi, D. K.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
Sachini, W. W. N.; Weerabahu, W. M. S. K.; Wickramarachchi, R.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)