Parvathavathini .K.V1 and *Senthilnathan.T. “Drinking Water Analysis of the Urapakkam Town At South Chennai City”. International Journal of Emerging Trends in Science and Technology, Vol. 3, no. 04, Apr. 2016, pp. 3806-12, https://igmpublication.org/ijetst.in/index.php/ijetst/article/view/1054.