"CHEMICAL COMPOSITION OF SOLID MINERALS FROM LOKOJA AND JOS IN NORTH CENTRAL NIGERIA" (2017) FULafia Journal of Science and Technology, 3(2), ص 58–62. موجود في: https://lafiascijournals.org.ng/index.php/fjst/article/view/94 (تاريخ الوصول: 17 مايو 2026).