Akoji, Jibrin. “Adsorption Performance of Packed Bed Column for the Removal of Lead (II) Using Velvet Tamarind (Dialium Indum) Shells”. Asian Journal of Applied Chemistry Research 3, no. 2 (June 28, 2019): 1-14. Accessed April 16, 2021. https://journalajacr.com/index.php/AJACR/article/view/30089.