Analisis Kelayakan Ekonomi pada Rencana Penggantian Alat Mekanis Penambangan Batubara Di PT XYZ, Kabupaten Tanah Bumbu, Provinsi Kalimantan Selatan: Analysis on Coal Mining Equipment Replacement Plan at PT XYZ, Tanah Bumbu Regency, Kalimantan Selatan Province. MINERAL, [S. l.], v. 6, n. 2, p. 39–43, 2021. DOI: 10.33019/mineral.v6i2.3094. Disponível em: https://journal.ubb.ac.id/index.php/mineral/article/view/3094. Acesso em: 18 apr. 2026.