MA'RIEF, A.; SANDI, R. Efisiensi Kerja Quality Control dalam Mengendalikan Grade Nikel di Kota Maba, Kabupaten Halmahera Timur Provinsi Maluku Utara. Journal of Mining Insight, [S. l.], v. 3, n. 2, p. 52–59, 2025. DOI: 10.58227/jmi.v3i2.293. Disponível em: https://ejournal.insightpublisher.com/index.php/JMI/article/view/293. Acesso em: 13 oct. 2025.