PEÑA GUARIN, Guillermo. Editorial. SIGNOS - Investigación en sistemas de gestión, [S. l.], v. 9, n. 2, p. 11–21, 2018. Disponível em: https://revistas.usantotomas.edu.co/index.php/signos/article/view/4075.. Acesso em: 12 feb. 2025.