SURYANTO, A.; MUSTAFIAH; MAULIDYA DWI PUTRI; NURFADILAH. Production Biodiesel from Vegetable Oils Using Duck Egg Shell Catalyst. Engineering And Technology Journal, [S. l.], v. 9, n. 2, p. 3521–3525, 2024. DOI: 10.47191/etj/v9i02.12. Disponível em: https://everant.org/index.php/etj/article/view/1199. Acesso em: 3 jul. 2024.