Wankasi, Donbebe, and Ezekiel Dixon Dikio. “Comparative Study of Coconut Shell and Palm Kernel Shell Biomass As Adsorbents for Sorption of Pb2+ from Aqueous Solution”. Asian Journal of Chemistry 27, no. 2 (January 10, 2015): 690–696. Accessed July 19, 2024. https://asianpubs.org/index.php/ajchem/article/view/27_2_67.