A.K.Mohammed, A.-H., A.-M. A.K, and H. A.A. “Kinetic Studies of Hydrodesulfurization of Vacuum Distillate”. Iraqi Journal of Chemical and Petroleum Engineering, Vol. 10, no. 1, Mar. 2009, pp. 53-57, https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/398.