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| Main Author: | |
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| Format: | Artículo científico |
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| Published: |
Universidad Nacional de Chimborazo
2017
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| Online Access: | https://www.redalyc.org/articulo.oa?id=571763481003 https://www.redalyc.org/journal/5717/571763481003/ https://www.redalyc.org/journal/5717/571763481003/html/ https://www.redalyc.org/journal/5717/571763481003/571763481003.epub https://www.redalyc.org/journal/5717/571763481003/movil |
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