VÁSQUEZ DE ALFARO, P. The impact and importance of specialized technical studies in tourism, based on the professional requirements demanded by different sectors of El Salvador. Entorno, [S. l.], n. 40, p. 17–19, 2008. DOI: 10.5377/entorno.v0i40.7259. Disponível em: https://lamjol.info/index.php/entorno/article/view/7259. Acesso em: 18 may. 2024.