Nishantha, B.M.N.Semasinghe, W.M.Kularathne, M.G.Gunarathana, K.M.L.M.M.2016-07-262016-07-262015Nishantha, B.M.N., Semasinghe, W.M., Kularathne, M.G. and Gunarathana, K.M.L.M.M. 2015. Impacts of external costs and benefits of paddy farming in Sri Lanka. International Journal of Social Sciences and Humanities Research, 03903): 106-114.2348-3164http://repository.kln.ac.lk/handle/123456789/13863enArticle