N. Hazim, Raghad, and Mehjin A. Al-Ani. “Effect of Petroleum Hydrocarbons Contamination on Soil Microorganisms and Biodegradation”. Rafidain Journal of Science 28, no. 1 (March 1, 2019): 13–22. Accessed September 27, 2025. https://jwups.uomosul.edu.iq/index.php/rsci/article/view/46775.