DaniDani Hari Tunggal Prasetiyo, Nasrul Ilminnafik, and MuhammadAlief. 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), 253-67. https://doi.org/10.19028/jtep.010.3.253-267.