Rahman, A.M., Salman, M.H. and Hammed, K.W. (2014) “Catalytic Cracking of Iraqi Vacuum Gasoil Using Large and Medium Pore Size of Zeolite Catalysts”, Al-Khwarizmi Engineering Journal, 11(1), pp. 73–83. Available at: https://www.alkej.uobaghdad.edu.iq/index.php/alkej/article/view/216 (Accessed: 5 January 2026).