Setiawan, A. 2022. MINERALS AND COAL RESERVES POTENTIAL IN INDONESIA AND THE WORLD: POTENSI CADANGAN MINERAL DAN BATUBARA DI INDONESIA DAN DUNIA. INTAN Jurnal Penelitian Tambang. 1, 1 (Feb. 2022), 20–31. DOI:https://doi.org/10.56139/intan.v1i1.7.