Input analysis - product: an application far the economy of Boyacá- Colombia. Revista cientifica In Vestigium Ire, [S. l.], v. 12, n. 2, p. 53–70, 2018. Disponível em: https://revistas.santototunja.edu.co/index.php/ivestigium/article/view/1720. Acesso em: 3 sep. 2026.