Dissanayake, D.M.A.B.; Palihawadana, T.S.; Wijesinghe, P.S.; Ratnasooriya, W.D.; Wimalasena, S.(Sri Lanka Association for the Advancement of Science, 2007)
Dissanayake, D.M.A.B.; Palihawadana, T.S.; Herath, H.M.R.P.; Wimalasena, S.; Ratnasooriya, W.D.; Wijesinghe, P.S.(Faculty of Allied Health Sciences, University of Peradeniya, 2009)