CLAVIJO, Alfonso Sanz. Ley General Tributaria - Responsabilidad Tributaria - Contratación y Subcontratación. Tourism & Management Studies, [S. l.], v. 2, p. 170–182, 2006. Disponível em: https://www.tmstudies.net/index.php/ectms/article/view/68.. Acesso em: 27 apr. 2024.