Jayaratne, K.H.T.; Paranagama, P.A.; Nugeliyadde, L.; Abeywickrama, K.P.(Annual Research Symposium, Faculty of Graduate Studies, University of Kelaniya, 2001)
Paranagama, P.A.; Jayathilake, G.S.; Jayawardene, A.L.; Mubarak, A.M.; Senanayeke, U.M.; Wimalasena, S.(Proceedings of Sri Lanka Association of Advancement of Science, 1989)
Paranagama, P.A.; Jayathilake, G.S.; Jayawardene, A.L.; Mubarak, A.M.; Senanayeke, U.M.; Wimalasena, S.(Proceedings of Sri Lanka Association of Advancement of Science, 1989)