Thannon, Anwar, Mahmood Mahmood, and Ihab Sabah. “Testing the Efficiency of Some Types of Trees in Treating Sewage Pollution”. Journal of Wahj Al-Ulom for Pure Sciences 1, no. 3 (August 9, 2025). Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/jwups/article/view/28484.