Jayathunga, J.N.D., Ranjana. U.K. Piyadasa and Kumari, G.R.A.G., (2018). Assessment of Surface Water Quality by Evaluating the Physico-Chemical Parameters and Identify the Impacts of Water Pollution. The international journal of science & technoledge, ISSN: 2321-919x, Vol.6 issue 9, PP-10-23. (http://www.theijst.com/wp-content/uploads/2018/09/ST1809-008.pdf)