AN ANALYSIS OF SAFETY LEVEL OF METAL CONTAMINANTS IN RIVER HADEJIA CATCHMENT, KANO REGION, NIGERIA. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 2, n. 2, p. 176–183, 2023. Disponível em: http://162.254.38.185/index.php/fjs/article/view/1364. Acesso em: 17 sep. 2025.