A. Sanata, “Characterization of Biogas as an Alternative Fuel in Micro-Scale Combustion Technology”, IJIE, vol. 15, no. 4, pp. 64–76, Oct. 2023, Accessed: Mar. 12, 2026. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/13108