Perera, K.G.N.Piyadasa, R.U.K.2015-04-022015-04-022008Perera, K.G.N. and Piyadasa, Ranjana U.K., 2008. Research study on soil and water quality in ball clay mining areas: with special reference to Dediyawala in Kaluthara district, In: Proceedings of the International Conference on Social Sciences, Sri Lanka, University of Kelaniya, pp 119.http://repository.kln.ac.lk/handle/123456789/6703enResearch study on soil and water quality in ball clay mining areas: with special reference to Dediyawala in Kaluthara districtArticle