Nuhu, A. A., I. Omali, and C. O. Clifford. “Equilibrium Adsorption Studies of Methylene Blue onto Blended Agricultural Wastes-Based Activated Carbon”. Nigerian Journal of Pharmaceutical and Applied Science Research, vol. 7, no. 3, Aug. 2020, pp. 7-16, http://mail.nijophasr.net/index.php/nijophasr/article/view/239.