Fernando, A. L. B.; Perera, P. G. T. N.; Liyanage, L.N.(International Conference on Applied Social Statistics (ICASS) - 2019, Department of Social Statistics, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2019)
Wickramaratne, K.A.D.I.(International Conference on Applied Social Statistics (ICASS) - 2019, Department of Social Statistics, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2019)
Senarathna, T.M.C.D.; Wijesaooriya, M.W.A.T.N.(4th International Conference on Social Sciences 2018, Research Centre for Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2018)
Kumara, S.W.P.; Chandana, T.H.(4th International Conference on Social Sciences 2018, Research Centre for Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2018)
Jayasekara, K.D.De.S.; Gunaratne, L.H.P.(4th International Conference on Social Sciences 2018, Research Centre for Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2018)