Arce, Ramón2013-10-292013-10-292009http://repositorio.pucp.edu.pe/index//handle/123456789/21361No presenta resumenapplication/pdfspaAttribution 4.0 Internationalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/Adultez mayorinfo:eu-repo/semantics/article