Buhari, S., and A. Bello. “DETERMINATION OF POTASSIUM AND SILICON FROM LEFT-OVER OF GOLD ORE USING PROTON INDUCED X-RAY EMISSION”. FUDMA JOURNAL OF SCIENCES 3, no. 1 (March 31, 2023): 273–279. Accessed October 29, 2025. http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/1453.