ENERGY DISPERSIVE X-RAY FLUORESCENCE ANALYSIS (EDXFA) OF TIN CONTENT IN CASSITERITE OBTAINED FROM RAY-FIELD MINING SITE, JOS. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 1, n. 1, p. 185–188, 2023. Disponível em: http://162.254.38.185/index.php/fjs/article/view/1244. Acesso em: 17 sep. 2025.