Nelson, E. C., E. B. O., and I. A. Onota. “Determination of Physico-Chemical Properties of Low Cost Adsorbent Produced from Activated Coconut Wastes”. The International Journal of Science & Technoledge, vol. 3, no. 10, Oct. 2015, http://internationaljournalcorner.com/index.php/theijst/article/view/125188.