NURSANTO, E.; IDRUS, A.; AMIJAYA, D. H.; PRAMUMIJOYO, S. KETERDAPATAN DAN TIPE MINERAL PADA BATUBARA SERTA METODE ANALISISNYA. JURNAL TEKNOLOGI TECHNOSCIENTIA, [S. l.], v. 4, n. 1, p. 1–10, 2011. DOI: 10.34151/technoscientia.v4i1.124. Disponível em: https://ejournal.akprind.ac.id/index.php/technoscientia/article/view/124. Acesso em: 5 oct. 2024.