Abd al-Razzaq Mohammed, S., and A. Thamir Hamad. “Evaluating the Performance of the A2O System for Removing Nutrients from Municipality Wastewater”. Al-Rafidain Engineering Journal (AREJ), vol. 24, no. 2, Dec. 2019, pp. 12-24, doi:10.33899/rengj.2019.164334.