Hettiarachchi, H.A.T.; Nimeshika, G.A.T.(Sri Lanka Forum of University Economists (SLFUE), Department of Economics, Faculty of Social Sciences, University of Kelaniya, 2016)
Mihirani, P.M.N.; Weerakoon, W.R.W.M.A.P.; Weerakoon, W.R.W.M.S.N.P.; Withana, N.R.P.; Dharmawardhana, M.W.C.; Samaraweera, J.P.U.(Department of Library and Information Science, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2016)