Labor lnformality in Tunja 2008 and 2015. Revista cientifica In Vestigium Ire, [S. l.], v. 12, n. 2, p. 14–33, 2019. Disponível em: https://revistas.santototunja.edu.co/index.php/ivestigium/article/view/1718. Acesso em: 3 sep. 2026.