Balogun, Ayo, and Alafara Baba. “Leaching Kinetics of Crucial Metals from Bismutite Ore: Parameter Determination”. Journal of Sustainable Materials Processing and Management , vol. 5, no. 2, Oct. 2025, pp. 94-103, https://journal.uthm.edu.my/index.php/jsmpm/article/view/23329.