“Biosorption of Lead Ions on Biosorbent Prepared from Plumb Shells (Spondias mombin): Kinetics and Equilibrium Studies: Biosorbent Prepared from Spondias Mombin”. Biological Sciences - PJSIR, vol. 53, no. 5, Oct. 2010, pp. 246-51, https://www.v2.pjsir.org/index.php/biological-sciences/article/view/471.