Kajian Efektifitas Kerja Operator dan Kondisi Alat pada Front Penambangan Tambang Besar Pemali PT Timah Tbk: Study on the Effectiveness of Operators and Equipment Conditions at Pemali Mining Front PT Timah Tbk. MINERAL, [S. l.], v. 6, n. 1, p. 25–30, 2021. DOI: 10.33019/mineral.v6i1.3082. Disponível em: https://journal.ubb.ac.id/index.php/mineral/article/view/3082. Acesso em: 7 nov. 2025.