Chin, Jacky. “Analysis of Mixing Coal and Biomass Fuels on Industrial Boiler Performance”. Jurnal Riset Teknologi Pencegahan Pencemaran Industri 15, no. 2 (November 30, 2024): 59–66. Accessed March 29, 2025. http://jrtppi.id/index.php/jrtppi/article/view/201.