Kapukotuwa, K.M.A.; Ranasinghe, G.; Abeynayake, M.D.I.K.; Vidanapathirana, G.K.; Wimalasuriya, I.G.R.N.(IRCHSS-2018 and Faculty of Humanities and Social Sciences, University of Sri Jayewardenepura, 2018-11)
Udatiyawala, D.S.; Weerasena, U.M.; Ranagala, D.L.; Vidanapathirana, G.K.; Ruwanthika, O.G.S.A.; Abeynayake, M.D.I.K.(IRCHSS-2018 and Faculty of Humanities and Social Sciences, University of Sri Jayewardenepura, 2018-11)