BARRIGA HAZ, Kenya Denisse. Financial Derivates. Ecuadorian Science Journal, [S. l.], v. 2, n. 2, p. 17–20, 2018. DOI: 10.46480/esj.2.2.10. Disponível em: https://journals.gdeon.org/index.php/esj/article/view/10.. Acesso em: 13 sep. 2025.