VERGARA MESA, Hernán Darío. The system of sources of the Colombian civil service: A review from labor law value. Opinión Jurídica, [S. l.], v. 16, n. 32, p. 27–50, 2018. DOI: 10.22395/ojum.v16n32a1. Disponível em: https://revistas.udem.edu.co/index.php/opinion/article/view/2276. Acesso em: 9 may. 2025.