Minja, Rwaichi J.A. “Practical Approach for Removal of Natural Organic Matter and Defluoridation of Maji Ya Chai River Water: Use of Acid Pre-Treated Bone Char and Coagulants”. Tanzania Journal of Engineering and Technology 38, no. 2 (February 9, 2020). Accessed April 7, 2026. http://196.44.161.124/index.php/tjet/article/view/3114.