PORTO JUNIOR, Francisco Gilson Rebouças. Guidelines for Authors / Copyright Statement and Privacy Policy. Observatory Journal, [S. l.], v. 3, n. 5, p. 681–693, 2017. Disponível em: https://sistemas.uft.edu.br/periodicos/index.php/observatorio/article/view/3947. Acesso em: 22 jul. 2024.