Dias, S.N.U.P.; Priyasad, H.A.D.; Manamperi, D.K.S.; Kumara, M.S.M.S.; Sandaruwan, D.M.S.; Pramoda, K. A.D.A.; Fernando, T.S.D.; Rashmi, W.A.D.; Ravindran, U.M.; Dhananjani, W.T.; Pitigalaarachchi, P.A.A.C.; Attanayake, A.M.C.H.
(Faculty of Science, University of Kelaniya, Sri Lanka, 2016)