Raheem, A. Z., M. M. Alfalze, and H. A. Mehdi. “Improvement of Gasoline Octane Number Produced from Basrah Refinery Plant by New Additives”. Basrah Journal for Engineering Sciences 8, no. 1 (June 30, 2008): 60–76. Accessed May 6, 2026. https://bjes.journalpath.com/bjes/article/view/42.