cdigital.dgb.uanl.mxcdigital.dgb.uanl.mx/la/1020124184/1020124184_002.pdfEn la figura 1-1b se...

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Transcript of cdigital.dgb.uanl.mxcdigital.dgb.uanl.mx/la/1020124184/1020124184_002.pdfEn la figura 1-1b se...