Fatima Garba Yusuf, Fatima Abubakar Muhammad and Abubakar Abubakar Ibrahim (2025) “Transesterification of Soybean Acid Oil with Al2O3 Catalyst: Effects of Catalyst Concentration and Reaction Time on Biodiesel Yield and Quality ”, Journal of Energy Technology and Environment, 7(1), pp. 1–13. doi: 10.5281/zenodo.15007489.