“Efficiency of Pre-Treated Immobilized Chara Algae (C. Vulgaris) for Biosorption of Copper and Lead from Aqueous Solutions ”. Diyala Journal of Engineering Sciences 15, no. 4 (December 18, 2022): 142–149. Accessed April 4, 2025. https://djes.info/index.php/djes/article/view/1064.