Kossay K. Al-Ahmady, D. and AL-Shrefy, Z. (2013) “Effect of Hydraulic Detention Time and WaterTemperature onthe Removal Efficiency of Organic and Nutrients Pollutants InDuckweed Based Wastewater Stabilization Ponds”, Al-Rafidain Engineering Journal (AREJ), 21(5), pp. 63–73. doi: 10.33899/rengj.2013.79419.