Ammar, Saad. “Experimental Evaluation Use of Semifluidized Bed Adsorber for the Treatment of P-Chlorophenol and O-Cresol in Wastewater Using Activated Carbon As Adsorbent”. Journal of Engineering 21, no. 12 (December 1, 2015): 19-28. Accessed November 27, 2019. http://joe.uobaghdad.edu.iq/index.php/main/article/view/287.