Cost, Emission, and Thermo-Physical Determination of Heterogeneous Biodiesel from Palm Kernel Shell Oil: Optimization of Tropical Egg Shell Catalyst. Indonesian Journal of Science and Technology, [S. l.], v. 9, n. 1, p. 1–32, 2024. DOI: 10.17509/ijost.v9i1.64006. Disponível em: https://ijost.upi.edu/index.php/ijost/article/view/396. Acesso em: 24 jul. 2026.