Ibrahim SA, Abed MF, Al-Tawash BS. Calculation of Pollution Indicators and Health Hazards of Heavy Elements in Surface Soils in Samarra City. Iraqi Journal of Science [Internet]. 2018 Aug. 30 [cited 2025 Dec. 6];59(3B):1419-2. Available from: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/443