Koppad, V. B., S. V. K., M. G., H. A., and S. K. “De-Fluoridation of Ground Water by Electro Coagulation Method”. The International Journal of Science & Technoledge, vol. 3, no. 12, Dec. 2015, http://internationaljournalcorner.com/index.php/theijst/article/view/124906.