“Effects of Heavy Metal (Pb) on the Growth of Algae Microcystis Sp. & Chroococcus Sp. Roaa Jafar El-Khairalla ”. University of Thi-Qar Journal of Science 5, no. 2 (May 28, 2015): 65–71. Accessed July 22, 2024. https://jsci.utq.edu.iq/index.php/main/article/view/108.