AGUIAR GARCÉS, Hernán Dario; ÁLVAREZ JIMÉNEZ, Rafael A. Economical Valoration of Enviromental Goods. Semestre Económico, [S. l.], v. 5, n. 9, 2001. Disponível em: https://revistas.udem.edu.co/index.php/economico/article/view/1358. Acesso em: 21 apr. 2026.