http://www.dspace.espol.edu.ec/handle/123456789/641 Mon, 06 Apr 2026 06:19:14 GMT 2026-04-06T06:19:14Z http://www.dspace.espol.edu.ec/handle/123456789/5856 Title: Examenes del pre de química Authors: Icq Tue, 07 Jul 2009 00:00:00 GMT http://www.dspace.espol.edu.ec/handle/123456789/5856 2009-07-07T00:00:00Z http://www.dspace.espol.edu.ec/handle/123456789/780 Title: Examanes de química Sun, 22 Feb 2009 00:00:00 GMT http://www.dspace.espol.edu.ec/handle/123456789/780 2009-02-22T00:00:00Z