FERREIRA-DIAS, S.; VALENTE, D. G.; ABREU, J. M. Comparison between ethanol and hexane for oil extraction from Quercus suber L. fruits. Grasas y Aceites, [S. l.], v. 54, n. 4, p. 378–383, 2003. DOI: 10.3989/gya.2003.v54.i4.225. Disponível em: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/225. Acesso em: 6 feb. 2023.