Sakerengan , Jamiko, et al. “COMPARISON OF TEMPERATURE VARIATIONS (60˚C, 80˚C, and 100˚C) ON MESH 30 AND 250 DRYING OF COFFEE WOOD CHARCOAL BRIQUETTE ON CALORIAL VALUE AND HARDNESS”. Mechanical, Energy and Material (METAL), vol. 3, no. 1, June 2025, pp. 08-13, https://ejournal.widyakarya.ac.id/index.php/metal/article/view/126.