Bello, O. S., O. M. Adelaide, M. A. Hammed, and O. A. M. Popoola. “Kinetic and Equilibrium Studies of Methylene Blue Removal from Aqueous Solution by Adsorption on Treated Sawdust”. Macedonian Journal of Chemistry and Chemical Engineering, vol. 29, no. 1, June 2010, pp. 77-85, doi:10.20450/mjcce.2010.181.