B. K. SAHU. Geology and Economics for Mining and Beneficiation of Low-Grade Ores. International Journal of Economic and Environmental Geology, [S. l.], v. 2, n. 1, p. 36–37, 2011. DOI: 10.46660/int.j.econ.environ.geol.v2i1.806. Disponível em: https://econ-environ-geol.org/index.php/ojs/article/view/806. Acesso em: 30 apr. 2026.