OCHOA MALDONADO, Ómar A. Reflections about the subsidy and contributions regime in the aqueduct services, sewer system, and trash collecting services sectors. Jurídicas, [S. l.], v. 8, n. 1, p. 99–120, 2011. Disponível em: https://revistasojs.ucaldas.edu.co/index.php/juridicas/article/view/4939. Acesso em: 16 may. 2024.