Browsing by Author "Dharmaratne, T.S."
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Item Environmental impact of gem mining:a case study in Kalu Ganga catchment, Ratnapura(Geological Society of Sri Lanka, Peradeniya, 2011) Wickramaarachchi, W.A.K.C.; Jayasinghe, R.M.N.P.K.; Dharmaratne, T.S.