DISTRIBUTION AND SIGNIFICANCE OF HEAVY METALS IN SOME COALS FROM BENUE TROUGH. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 2, n. 1, p. 231–237, 2023. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1303. Acesso em: 11 sep. 2025.