Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePRESENTACIÓN.AuthorsDÍAZ, JORGE AURELIOPublicationIdeas y Valores, 2021, Vol 70, p9ISSN0120-0062Publication typeArticleDOI10.15446/ideasyvalores.v70n7Supl.99431