Khudhair, Muna Mahmood, Kafaa Fadhil Abas, Taghreed Mahdi Hameed, Awali Assad, and Wasan Nifal. “Rehabilitating of Used Generator Oil by Acid /Bentonite Treatment and Studying of Its Performance Evalution”. Journal of Petroleum Research and Studies 5, no. 1 (June 1, 2014): 271-193. Accessed April 20, 2024. https://jprs.gov.iq/index.php/jprs/article/view/144.