Jayathunga, J. N.D., Ranjana. U.K. Piyadasa, and G. R.A.G. Kumari. “Assessment of Surface Water Quality by Evaluating the Physico-Chemical Parameters and Identify the Impacts of Water Pollution”. The International Journal of Science & Technoledge 6, no. 9 (September 30, 2018). Accessed June 29, 2024. http://internationaljournalcorner.com/index.php/theijst/article/view/132184.