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2by Pérez,Jhonny, Aldana,Gerardo, Useche,Mariana, Rincón,Nancy, Bracho,Nibis, Mesa,Johan
Published 2010Digital revistaSCIELO -
3by Mesa,Johan, Bravo,Alfonso, Morales,José, Sánchez,Ligbel, Valle,Paola, Gutiérrez,Elizabeth, Ledo,Hilda
Published 2007Digital revistaSCIELO -
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5by SÁNCHEZ,Ligbel, MORALES,José, VELÁSQUEZ,Harvi, PORTILLO,Dennis, CANO,Yulixis, MONTILLA,Brinolfo, IRIARTE,Nelkis, MESA,Johan
Published 2009Digital revistaSCIELO