Citation:Madushani, H.D.P., Nayomi, H.V.P.M., Dasanayake, D.M.H. and Perera, L.G.D. 2015. ප්රවාහන ක්රම හා වායු දූෂණය. National Conference on Applied Social Statistics Research (NCASSR), Social Statistics Students’ Association, Department of Economics, University of Kelaniya, Sri Lanka. pp 92-93.
