RÚA FLECHAS, Marissa; ARBELÁEZ RESTREPO, Juan Carlos; CASTRO BELTRÁN, Harol. Planning of Public Works Contracts in Colombia: Principle, Duty or Requirement? Obligatoriness and Consequences of its Inapplication. Opinión Jurídica, [S. l.], v. 18, n. 37, p. 93–115, 2019. DOI: 10.22395/ojum.v18n37a3. Disponível em: https://revistas.udem.edu.co/index.php/opinion/article/view/2992. Acesso em: 3 apr. 2025.