Ranchigoda, R.K.S.S.; Dharmadasa, R.M.D.; Fonseka, D.L.C.K.; Samarasinghe, K.; Attanayake, A.M.L.(Sri Lanka Association for the Advancement of Science, Colombo 07, 2015-11-30)
Dharmadasa, R.M.; Abeywardhana, K.W.; Abeysinghe, D.C.; Attanayake, A.M.L.(Sri Lanka Association for the Advancement of Science, Colombo 07, 2015-12-01)