Claudia Appiah, and Christopher Nkansah. “Thermal Pretreatment and Selective Leaching of Mineral-Bearing Industrial Residues for Domestic Critical-Material Recovery: A Process-Engineering Framework January 2021”. Well Testing Journal 30, no. 2 (June 19, 2021): 81–116. Accessed June 19, 2026. https://welltestingjournal.com/index.php/WT/article/view/299.