Dharmawardane, P.M.N.; Piyadasa, R A D; Wickramasuriya, S B P(Proceedings of the Annual Research Symposium 2005-Faculty of Graduate Studies, University of Kelaniya, 2005)
Wickramasuriya, S B P; Wimaladharma, N A S N(Proceedings of the Annual Research Symposium 2005-Faculty of Graduate Studies, University of Kelaniya, 2005)
Gunawardhana, Prishanta; Katugampola, Mangala(Proceedings of the Annual Research Symposium 2005-Faculty of Graduate Studies, University of Kelaniya, 2005)
Weerasinghe, W M D; Silva, E I L; Dias, R.K.S.(Proceedings of the Annual Research Symposium 2005-Faculty of Graduate Studies, University of Kelaniya, 2005)