Comparative study of efficiency biosorbents materials (almond, olive, and eucalyptus leaves) in removing of lead from laboratory aqueous solutions. روافد المعرفة. 2025;3(6):1-7. تاريخ الوصول يونيو 23, 2026. https://ra.azu.edu.ly/index.php/rawafed-almarefa/article/view/113