Sugiarto, W., B. Muljana, I. Syafri, Y. Rizal, and M. N. H. Prasetya. “THE IMPACT OF TOTAL MOISTURE AND ASH ON CALORIFIC VALUE: COAL RESEARCH IN BERAU SUB-BASIN, EAST KALIMANTAN”. KURVATEK, vol. 10, no. 1, Apr. 2025, pp. 1-8, doi:10.33579/krvtk.v10i1.5519.