H. Sultan, Hassan, Younis S. Tlaiaa, and Zainab A. Razak. 2015. “BIODEGRADATION OF OIL REFINERY EFFLUENTS USING LOCALLY BACTERIAL ISOLATES”. Journal of Engineering and Sustainable Development 19 (5): 262-69. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/826.