SIMATUPANG, J. H. .; JUFRIZAL, J.; SUPRIATNO, S. Thermal Efficiency Analysis of a Downdraft Gasifier-Type Biomass Stove with Variations in the Mass of Wood Charcoal and Wood Pellet Mixtures. IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA), [S. l.], v. 4, n. 2, p. 148–154, 2025. DOI: 10.56862/irajtma.v4i2.201. Disponível em: https://e-journals.irapublishing.com/index.php/IRAJTMA/article/view/201. Acesso em: 16 sep. 2025.