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Cover Vol. 20 No. 3
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PDFURN: http://www.revista.ccba.uady.mx/urn:ISSN:1870-0462-tsaes.v20i3.2503
Copyright (c) 2017 . .
This work is licensed under a Creative Commons Attribution 4.0 International License.
URN: http://www.revista.ccba.uady.mx/urn:ISSN:1870-0462-tsaes.v20i3.2503
Copyright (c) 2017 . .
This work is licensed under a Creative Commons Attribution 4.0 International License.