A.K. Mohammed, Abdul Halim, et al. “CRACKING ACTIVITY OF PREPARED Y-ZEOLITE CATALYST USING CUMENE ON FLUIDIZED BED REACTOR”. Iraqi Journal of Chemical and Petroleum Engineering, vol. 12, no. 2, June 2011, pp. 9-17, https://doi.org/10.31699/IJCPE.2011.2.2.