The Properties of Fuel and Characterization of Functional Groups in Biodiesel -Water Emulsions from Waste Cooking Oil and Its Blends. Indonesian Journal of Science and Technology, [S. l.], v. 5, n. 1, p. 95–108, 2020. DOI: 10.17509/ijost.v5i1.23103. Disponível em: https://ijost.upi.edu/index.php/ijost/article/view/231. Acesso em: 6 sep. 2026.