Ratnasooriya, W.D., Galhena, G., Liyanage, S.S.P., Jayakody, J.R.A.C., Hettiarachchi, A.D.I. and Ediriweera, E.R.H.S.S.
Proceedings of the 22nd Annual sessions of the Institute Of Biology, Colombo, Sri Lanka pp46
Publication year: 2002

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