Yapa, A.R.R.(2nd International Studies Students’ Research Symposium – 2018, Department of International Studies, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2018)
Priyadarshani, W.I.; Dias, D.G.P.T.(4th National Research Conference on Applied Social Statistics, Social Statistics Students’ Association, Department of Social Statistics, Faculty of Social Science, University of Kelaniya, Sri Lanka, 2018)