Youman, KatherineAbad E., Aída2014-06-272014-06-271998http://dspace.ucuenca.edu.ec/handle/123456789/16107application/pdfspaopenAccesshttp://creativecommons.org/licenses/by-nc-sa/3.0/ec/Enseñanza Del InglesAprendizajeThe life of Thomas Alva EdisonbachelorThesis