Y. Al-Saffawi A-A, A. Talaat R. Sewage Water Purification Through Direct Exposure to Solar Radiation. RSCI [Internet]. 2018 Mar. 1 [cited 2025 Sep. 9];27(1):64-75. Available from: https://ojs.uomosul.edu.iq/index.php/rsci/article/view/46484