KWEYUNGA, C.; RBM SENZOTA, R. B. M. Impact of small scale gold mining on soils of the wetland forests in east Usambara, Tanzania . Tanzania Journal of Science, [S. l.], v. 33, n. 1, p. 67–78, 2021. Disponível em: https://tjs.udsm.ac.tz/index.php/tjs/article/view/356. Acesso em: 29 apr. 2024.