Ali S. Ali, Basim Y. Al-Khafaji, and Haider R. Al-Gezi. “Concentration of Some Heavy Elements in Water , Sediment and Plants in Al-Gharraf River in Thi-Qar Province –South of Iraq”. University of Thi-Qar Journal of Science, Vol. 7, no. 2, Dec. 2020, pp. 69-72, https://www.jsci.utq.edu.iq/index.php/main/article/view/716.