Palliyaguruge, R.H.; Gunawardene, Y.I.N.S.; Manamperi, A.; Wijekoon, C.N.; Wellawaththage, L.C.; Abeyewickreme, W.(Sri Lanka Association for the Advancement of Science, 2008)
Manamperi, A.; de Silva, P.; Ekanayaka, C.; Gunawardene, Y.I.N.S.; de Silva, J.; Weerasena, O.V.D.S.J.; Dassanayake, R.S.(Sri Lanka Association for the Advancement of Science, 2008)
Manamperi, A.; Gunawardene, Y.I.N.S.; Bandara, K.B.A.T.; Dayanath, M.Y.D.; Hapuarachchi, H.A.C.; Abeyewickreme, W.(Sri Lanka Association for the Advancement of Science, 2004)