Gamage, L.K.; Wijesinghe, W.A.N.D.(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)
Gamage, L.K.; Wijesinghe, W.A.N.D.(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)
Gamage, L.K.; Wijesinghe, W.A.N.D.(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)