Kodituwakku, K.A.R.K.; Wazir, S.R.; Aththanayake, A.M.H.L.; Silva, T.M.S.D.G.; Malshani, E.M.S.; Partheepan, K.; Thevendran, K.; Udayanga, N.W.B.A.L.; Sumanapala, A.P.; Jayanga, B.H.N.; Chandrasekara, W.U.
(Faculty of Science, University of Kelaniya, Sri Lanka, 2016)