Gaya, Umar Ibrahim, and Sunusi A. Zubair. “Adsorption of Aqueous Using Granular Adsorbents from Accanthospermum Hispendum DC”. Journal of Science and Technology, vol. 13, no. 1, May 2021, pp. 18-29, https://publisher.uthm.edu.my/ojs/index.php/JST/article/view/7611.