“DETERMINATION OF LEAD FROM GOLD ORE USING PROTON INDUCED X-RAY EMISSION TECHNIQUE”. FUDMA JOURNAL OF SCIENCES 5, no. 1 (June 29, 2021): 490–494. Accessed September 12, 2025. http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/594.