Fernando, T.R.G.N.; Niloofa, M.J.R.; De Silva, H.J.; Rajapakse, S.; Premawansa, S.; Handunnetti, S.M.(Sri Lanka Association for the Advancement of Science, Colombo 07, 2015-12-01)
Krishnathilaka, R.K.S.; Perera, L.A.; Amarakoon, A.M.M.W.; Udamulla, K.M.L.A.; Karunananda, P.A.K.(Sri Lanka Association for the Advancement of Science, Colombo 07, 2015-12-01)