ISTOMO, Finda Pratiwi; TRISTIASTI, Ameylia. PENETAPAN NILAI KALORI DALAM BATUBARA DENGAN KALORIMETER PARR 6200. Sains Natural: Journal of Biology and Chemistry, [S. l.], v. 7, n. 2, p. 83–90, 2019. DOI: 10.31938/jsn.v7i2.257. Disponível em: https://ejournalunb.ac.id/JSN/article/view/257. Acesso em: 3 oct. 2025.