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621Article of journalPublished in 2019Repositorio Repositorio Universidad de Cartagena
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622Trabajo de grado de pregradoPublished in 2017Repositorio Repositorio Institucional USTA
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623
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624Article of journalPublished in 2019Repositorio Biblioteca Digital Universidad Externado de Colombia
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625
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626
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627
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628Article of journalPublished in 2018Repositorio Repositorio Universidad de Cartagena
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629Article of journalPublished in 2015Repositorio REDICUC - Repositorio CUC
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630Trabajo de grado de pregradoPublished in 2020Repositorio RIUD: repositorio U. Distrital
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631
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632Review articlePor Restrepo Medrano, Juan Carlos; Ronda Pérez, Elena María; Vives Cases, María del Carmen; Gil González, DianaPublished in 2009Repositorio Repositorio UdeA
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633
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634Article of journalPublished in 2017Repositorio Repositorio Universidad de Cartagena
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635Article of journalPublished in 2018Repositorio Repositorio Universidad de Cartagena
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636Article of journalPublished in 2019Repositorio Repositorio Universidad de Cartagena
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637
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638Article of journalPublished in 2020Repositorio Repositorio Institucional U. Caldas
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639
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640articlePublished in 2015Repositorio Repositorio Universidad Javeriana“... of motivating circumstances. These are: 1) The overwhelming increase in the fees of scientific journals, which...”
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