Slater, Robert O.2018-04-102018-04-101997http://revistas.pucp.edu.pe/index.php/educacion/article/view/5195/5187El artículo no presenta resumen.application/pdfspainfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0Educacióninfo:eu-repo/semantics/articlehttps://purl.org/pe-repo/ocde/ford#5.03.00