Radhika, N.M.L.; Gunathilaka, P.A.D.H.N.; Kasturiratne, K.T.A.A.; Abeyewickreme, W.(Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2016)
Radhika, N.M.L.; Gunathilaka, P.A.D.H.N.; Kasturiratne, A.; Abeyewickreme, W.(International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)