Keerthika, V.; Ranatunga, M. A. B.; Perera, D.; Herath, H.(4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
Medhavi, P.I.H.R.; Samarasinghe, D.G.S.N.; Herath, H.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)