• C.M.K.N.K.Chandrasekara, Ranjana.U.K.Piyadasa, A.C Gurusinghe & K.K.I.Kulatunga, 2011, Spatial Trends in Water Quality Changes of Kaluwa Modara Tributary of Bentara River, Fourth National Geography Conference, Department of Geography , University of Sri Jayewardenepura.
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