Dani, D.H.T.P. et al. 2022. The Effect of the Transesterification Process Using KOH Catalyst on the Characteristics of Biodiesel from Sterculia Foetida Seeds as an Alternative Fuel. Jurnal Keteknikan Pertanian. 10, 3 (Dec. 2022), 253–267. DOI:https://doi.org/10.19028/jtep.010.3.253-267.