Mohammed, Abdul-Halim A-K, and Muhanned A Hassan. “Catalytic Reduction of Nitric Oxide in Automobile Exhaust Gases”. Iraqi Journal of Chemical and Petroleum Engineering 3, no. 2 (June 30, 2002): 7–13. Accessed May 15, 2024. https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/622.