SIJA, J.; MAZUNGA, M. Assessment of Viability of Coal Mines in Tanzania for Extraction of Rare Earth Elements. Tanzania Journal of Science, [S. l.], v. 49, n. 4, p. 819–830, 2023. DOI: 10.4314/tjs.v49i4.4. Disponível em: http://www.tjs.udsm.ac.tz/index.php/tjs/article/view/1571. Acesso em: 6 may. 2025.