SINGH, P. K. Tantalite exploration in “Block-A” of Uis region, Namibia. Trabajos de Geología, [S. l.], v. 27, n. 27, 2011. Disponível em: https://reunido.uniovi.es/index.php/TDG/article/view/361. Acesso em: 6 may. 2024.