Tarbuka, P. F, and R. H Gumus. “Methylene Blue and Iron (II) Adsorption onto Raphia Hookeri Seed: A Comparative Equilibrium Isotherm Study”. International Journal of Chemical and Process Engineering Research 8, no. 1 (September 27, 2021): 11–18. Accessed April 28, 2024. https://archive.conscientiabeam.com/index.php/65/article/view/1822.