Al-Nozaily, Fadhl Ali, Fath Khidhr Radhwan, and Abdulwahab Ismael Salah. “Evaluation of Wastewater Treatment Plant in Sana’a, Yemen”. Journal of Science and Technology 11, no. 2 (December 31, 2006). Accessed November 15, 2024. https://journals.ust.edu/index.php/JST/article/view/65.