Punchihewa, C.N.D.; Kiriella, K.G.A.P.; Kumara, A.D.B.; Kodikara, R.C.(Department of Library and Information Science, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2016)
Wenkatha, A.; Aruna Shantha, A.(Sri Lanka Forum of University Economists (SLFUE), Department of Economics, Faculty of Social Sciences, University of Kelaniya, 2016)