TANGGARA, D. N. S. P.; KRISTIANA, W. KARAKTERISTIK BATUBARA DAERAH KATANJUNG DAN SEKITARNYA : CHARACTERISTICS OF COAL IN THE KATANJUNG AREA. JURNAL TEKNIK PERTAMBANGAN, [S. l.], v. 23, n. 2, p. 11–17, 2023. DOI: 10.36873/jtp.v23i2.10483. Disponível em: https://e-journal.upr.ac.id/index.php/JTP/article/view/10483. Acesso em: 19 nov. 2024.