Pérez Riojas, Fernando2017-01-22http://revistas.pucp.edu.pe/index.php/ayd/article/view/19627/19722No presenta resumenapplication/pdfspainfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0Presentacióninfo:eu-repo/semantics/otherhttps://purl.org/pe-repo/ocde/ford#6.04.00