Analisis Pengaruh Perubahan Nilai Total Moisture Dan Ash Content Terhadap Nilai Kalori Batubara Di Unit Pelabuhan Pt Bukit Asam Tbk Tarahan Bandar Lampung. MINERAL, [S. l.], v. 5, n. 1, p. 7–12, 2020. DOI: 10.33019/mineral.v5i1.3053. Disponível em: https://www.journal.ubb.ac.id/index.php/mineral/article/view/3053. Acesso em: 17 apr. 2026.