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  • http://tesis.ipn.mx/xmlui/handle/123456789/16535
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  • http://tesis.ipn.mx/xmlui/handle/123456789/16480
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  • http://tesis.ipn.mx/xmlui/handle/123456789/16581
  • http://tesis.ipn.mx/xmlui/handle/123456789/16661
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  • http://tesis.ipn.mx/xmlui/handle/123456789/16645
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  • http://tesis.ipn.mx/xmlui/handle/123456789/16622
  • http://tesis.ipn.mx/xmlui/handle/123456789/16579
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  • http://tesis.ipn.mx/xmlui/handle/123456789/16564
  • http://tesis.ipn.mx/xmlui/handle/123456789/16608
  • http://tesis.ipn.mx/xmlui/handle/123456789/16668