Suratno S, Sandan S, Andin SA. ANALYSIS OF THE EFFECT OF TOTAL MOISTURE (TM), ASH CONTENT (ASH), AND TOTAL SULFUR (TS) ON THE GROSS CALORIFIC VALUE OF COAL SEAM 16 AT PT UNGGUL NUSANTARA. MICJO [Internet]. 2026 Jul. 8 [cited 2026 Jul. 9];3(3):3328-34. Available from: https://e-jurnal.jurnalcenter.com/index.php/micjo/article/view/2665