Evaluation of the Efficiency of Wetlands to Treat water Pollution in the Litani River "studying the Biochemical Oxygen Demand". مجلة العلوم الهندسية [Internet]. 2023 Oct. 1 [cited 2026 Jun. 18];39(3). Available from: https://journal.damascusuniversity.edu.sy/index.php/engj/article/view/4178