Amarasinghe, L.D.; Sivanesan, M.; Abeysinghe, I.S.B.(Proceedings of the 19th Annual Sessions of the Institute of Biology of Sri Lanka, September, 1999)
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)