NYAMDELGER, Shirchinnamjil et al. Copper extraction from the sulphation-roasted copper technogen concentrate. Bulletin of the Institute of Chemistry and Chemical Technology, [S. l.], v. 10, n. 10, p. 1–9, 2022. DOI: 10.5564/bicct.v10i10.1483. Disponível em: https://mongoliajol.info/index.php/BICCT/article/view/1483. Acesso em: 6 feb. 2025.