Abbas, Fatima, and Hatem Asel. “The Electrochemical Removal of Oil and COD from Petroleum Wastewater: Electrochemical Removal of Oil and COD from Petroleum Wastewater”. Wasit Journal of Engineering Sciences, vol. 11, no. 1, Apr. 2023, pp. 134-49, https://doi.org/10.31185/ejuow.Vol11.Iss1.433.