2024-03-29T01:41:41Zhttps://bibdigital.epn.edu.ec/oai/requestoai:bibdigital.epn.edu.ec:15000/187942019-04-08T03:59:14Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/188112019-04-07T13:28:17Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/188712019-04-07T13:46:56Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/190822019-04-07T13:29:18Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/193432019-04-07T22:05:28Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/197632019-04-08T01:17:21Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/197752019-04-07T12:18:53Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/197992019-04-07T12:28:27Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/199972019-04-08T11:20:58Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/200932019-04-08T11:07:35Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/201282019-04-08T09:59:02Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/202382019-05-30T15:01:26Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/204662019-09-09T18:47:02Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/205752019-12-10T14:01:18Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/209762020-07-22T16:27:29Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/209852020-07-28T19:55:14Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/213212021-01-15T21:58:02Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/213922021-02-11T21:06:05Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/214192021-02-25T21:05:31Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793oai:bibdigital.epn.edu.ec:15000/244882023-08-07T17:36:31Zcom_15000_18792com_15000_7578com_15000_7575com_15000_8col_15000_18793