Mohottige, C.S.N.; Amarasinghe, L.D.(Poster presentation at Proceedings of the 60th Annual sessions of the Sri Lanka Association for the Advancement of Science, 2004)
Hapuarachchi, H.A.C.; Dayanath, M.Y.D.; Abeysundara, S.; Bandara, K.B.A.T.; Abeyewickreme, W.; de Silva, N.R.(Sri Lanka Association for the Advancement of Science, 2004)