Geochemical and Mineralogical Secrets of Cretaceous Coals in the Upper Benue Trough, Nigeria. Journal of Pure and Applied Sciences (Science Forum), [S. l.], v. 26, n. 1, 2026. Disponível em: https://atbuscienceforum.com.ng/index.php/jpas/article/view/253. Acesso em: 27 may. 2026.