Hapugoda, M.D.; de Silva, N.R.; Khan, B.; Gunasena, S.; Dayanath, M.Y.D.; Abeyewickreme, W.(Malaysian Society of Parasitology and Tropical Medicine, 2007)
Hapugoda, M.D.; Bandara, K.B.A.T.; Dayanath, M.Y.D.; Wellawaththage, C.; Hapuarachchi, H.A.C.; Abeyewickreme, W.(Sri Lanka Association for the Advancement of Science, 2009)
Hapangama, H.A.D.C.; Hapugoda, M.D.; Gunawardene, Y.I.N.S.; Premaratna, R.; Dayanath, M.Y.D.; Abeyewickreme, W.(Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, 2007)
Hapangama, H.A.D.C.; Gunawardene, Y.I.N.S.; Hapugoda, M.D.; Premaratna, R.; Dayanath, M.Y.D.; Abeyewickreme, W.(Sri Lanka Association for the Advancement of Science, 2007)