Ramanayaka, A.R.N.D.; Semansinghe, W.M.; Ohani, P.A.L.; Wehigaldeniya, W.G.D.S.(Sri Lanka Forum of University Economists (SLFUE), Department of Economics, Faculty of Social Sciences, University of Kelaniya, 2016)
Vidanapathirana, C.; Weerasinghe, K.G.G.; Jayasinghe, N.M.A.(Sri Lanka Forum of University Economists (SLFUE), Department of Economics, Faculty of Social Sciences, University of Kelaniya, 2016)
Dissanayake, D.M.R.; Wastantha, H.L.N.; Jinadasa, M.P.K.(Research Centre for Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2016)