MALISA, E. .; KINABO, C. Environmental risks for gemstone miners with reference to Merelani tanzanite mining area, Northeastern Tanzania. Tanzania Journal of Science, [S. l.], v. 31, n. 1, p. 1–12, 2021. Disponível em: https://tjs.udsm.ac.tz/index.php/tjs/article/view/608. Acesso em: 19 may. 2024.