Ramanaka, A.R.N.D.; Semasinghe, W.M.; Wehigaldeniya, W.G.D.S.; Oshani, P.A.L.; Dilshani, P.Y.H.; Dissanayake, N.B.(Research Centre for Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2016)
Nishantha, B.M.N.; Mahindha, G.M.; Semasinghe, W.M.; Kularathne, M.G.(Reviewing International Encounters 2015, Research Center for Social Sciences, University of Kelaniya, Sri Lanka, 2015)