NDEH, E. S.; OTACHE, G. S. Effects of Illegal Gold Mining Activities on heavy Metal Content of Soil in Chanchaga, Niger State. Journal of Science Education and Humanities, [S. l.], v. 8, n. 1, 2025. Disponível em: https://akscoejoseh.org.ng/index.php/joseh/article/view/3. Acesso em: 12 may. 2026.