Geologi Dan Pengaruh Struktur Geologi Terhadap Kualitas Batubara pada Satuan Batupasir Kampungbaru Daerah Mutiara dan Sekitarnya Kecamatan Samboja Kabupaten Kutai Kartanegara Provinsi Kalimantan Timur: Geology and Geological Structure Influence on the Quality of Coal At Sandstone Unit Kampungbaru, Mutiara And Surrounding Area, Samboja district, Kutai Kartanegara Regency East Kalimantan Province. PROMINE, [S. l.], v. 4, n. 2, 2018. DOI: 10.33019/promine.v4i2.107. Disponível em: https://www.journal.ubb.ac.id/index.php/promine/article/view/107. Acesso em: 13 apr. 2026.