Muhandiramge, K.M.R.R.; Jayawardhana, M.N.; Dulani, K.P.K.; Kodithuwakku, D.S.; Kiriella, P.M.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Gunasekara, K.D.H.U.; Sandamali, M.A.D.N.; Fernando, K.D.A.K.; Padmasika, P.A.T.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Gunasekara, K.D.H.U.; Sandamali, M.A.D.N.; Fernando, K.D.A.K.; Padmasika, P.A.T.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Herath, H.M.H.C.; Sampathge, R.T.A.; Fernando, N.H.M.; Dewuduni, J.M.D.M.H.; Damayanthi, M.K.N.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Madushani, H.D.P.; Nayomi, W.V.P.N.; Dasanayake, D.H.M.; Perera, L.G.D.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)