Mardina, P., Wijayanti, H., Tuhuloula, A., Hijriyati, E., & Sarifah. (2021). Corncob residue as heterogeneous acid catalyst for green synthesis of biodiesel: A short review. Communications in Science and Technology, 6(2), 60-68. https://doi.org/10.21924/cst.6.2.2021.460