Said, E., E. Mansour, and M. Aswad. “Kinetics of Hydrodesulfurization Catalyst Rejuvenation Process”. Iraqi Journal of Chemical and Petroleum Engineering, Vol. 3, no. 3, Sept. 2002, pp. 31-34, http://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/636.