هيفا سوسن, نيصافي ابراهيم, and حداد محمد. 2021. “Determination of Concentration of Lead in the Soil of Marren Alsaleeb Dam and Their Relationship With Chemical Properties”. Tishreen University Journal -Biological Sciences Series 43 (2). https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/10590.