DIRGANTARA, M.; KRISTIAN, N.; KARELIUS, K. Evaluasi Prediksi Nilai Higher Heating Value (HHV) Biomassa Berdasarkan Analisis Ultimate: Evaluation of Prediction Higher Heating Value (HHV) of Biomass-Based on Ultimate Analysis. Jurnal Jejaring Matematika dan Sains, [S. l.], v. 1, n. 2, p. 107–113, 2019. DOI: 10.36873/jjms.v1i2.218. Disponível em: https://e-journal.upr.ac.id/index.php/JMS/article/view/547. Acesso em: 28 nov. 2022.