Karunarathne, A.W.S.P.; Perera, M.S.H.; Liyanage, U.P.(International Conference on Applied Social Statistics (ICASS) - 2019, Department of Social Statistics, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2019)
Wijerathna, T.; Gunathilaka, N.; Gunawardena, K.; Rodrigo, W.(International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019)
Sachithra, S. A. L.; Liyanage, U. P.; Wijeyaratne, W. M. D. N.(4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
Udayanga, L.; Herath, K.; Gunanthilaka, N.; Iqbal, M.C.M.; Abeyewickreme, W.(International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019)
Hakmanage, N.M.; Chandrasekara, N.V.; Jayasundara, D.D.M.(International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019)