Cheeman Abdulkarim Qarani, Mohammed Jawdat Barzanjy and Ziyad Jamil Talabany 2020. REDUCING OIL POLLUTION IN KAWERGOSK OIL REFINERY EFFLUENT. Zanco Journal of Pure and Applied Sciences. 32, 5 (Oct. 2020), 26–35. DOI:https://doi.org/10.21271/ZJPAS.32.5.3.