M. Ibrahim, Hind, and Rasha H. salman. “Study the Optimization of Petroleum Refinery Wastewater Treatment by Successive Electrocoagulation and Electro-Oxidation Systems”. Iraqi Journal of Chemical and Petroleum Engineering, vol. 23, no. 1, Mar. 2022, pp. 31-41, https://doi.org/10.31699/IJCPE.2022.1.5.