A. Rahi, Muna, and Ayad A. H. Faisal. “Performance of Subsurface Flow Constructed Wetland Systems in the Treatment of Al-Rustumia Municipal Wastewater Using Continuous Loading Feed”. Iraqi Journal of Chemical and Petroleum Engineering, vol. 20, no. 2, June 2019, pp. 33-40, https://doi.org/10.31699/IJCPE.2019.2.5.