J. M. Salman, A. A Muhammed, and A. A. Shahad. 2011. “Batch Adsorption Study of Bentazon Herbicide from Aqueous Solution Using Coconut Activated Carbon ”. Journal of Madenat Alelem University College 3 (1), 4-13. http://116.203.176.164/index.php/JMAUC/article/view/261.