Investasi dan Analisis Kelayakan Ekonomi Pertambangan Batubara PT. Adimitra Baratama Nusantara di Kalimantan Timur. Jurnal Geologi Pertambangan (JGP), [S. l.], v. 26, n. 1, 2020. DOI: 10.53640/jgp.v26i1.754. Disponível em: https://ejurnal.unikarta.ac.id/index.php/jgp/article/view/754. Acesso em: 25 agu. 2025.