Garba, Abdurrahman, A. Tahir, and Abdulazeez Kankia Yusuf. “Adsorption of Methylene Blue Using Activated Carbon Made from Watermelon Rinds”. Journal of Sustainable Materials Processing and Management 1, no. 1 (December 9, 2021): 38–43. Accessed August 12, 2026. https://journal.uthm.edu.my/index.php/jsmpm/article/view/9955.