Perera, G. G. E.; Sampath, P. A. I.; Vithanage, C. V.; Ranasinghe, M. E. G. C. S.; Walisadeera, A. I.(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2016-01-28)
Fernando, M.E.K.K.; De Silva, U.P.M.; Chathurika, A.P.S.; De Silva, N.; Abeywickrama, L.M.(Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2016-01-13)