Madushani, H.D.P.; Nayomi, W.V.P.N.; Dasanayake, D.M.H.; Perera, L.G.D.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Fernando, K.C.L.; Abesinghe, M.S.; Ranasilige, H.; Madushani, K.; Chathurika, C.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Hettiarachchi, H.A.S.S.; Dissanayake, A.A.P.; Niroshan, D.M.M.; Damayanthi, M.K.N.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Weerasinghe, M.W.A.S.M.; Senavirathne, K.B.R.; Sandaruwan, G.H.A.L.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)