Beneficiation of Ferruginous Manganese Ore of Um Bogma Locality, Sinai: Comparison Between Conventional Reduction Roasting Techniques and Microwave Technology . Rudarsko-geološko-naftni zbornik, [S. l.], v. 39, n. 5, p. 89–100, 2024. DOI: 10.17794/rgn.2024.5.6. Disponível em: https://ojs.srce.hr/index.php/rgn/article/view/30134. Acesso em: 23 aug. 2025.