http://repositorio.ujed.mx/jspui/handle/123456789/185 Wed, 10 Jun 2026 04:02:41 GMT 2026-06-10T04:02:41Z http://repositorio.ujed.mx:80/jspui/retrieve/90c21e16-1374-446f-9f6a-09be1182cd4f/thesis.png http://repositorio.ujed.mx/jspui/handle/123456789/185