Zambrano Leal, A. (2017). Features of the History of a Phenomenon and a Theory. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZambrano Leal, Armando. Features of the History of a Phenomenon and a Theory. Universidad Pedagógica y Tecnológica de Colombia, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZambrano Leal, Armando. Features of the History of a Phenomenon and a Theory. Universidad Pedagógica y Tecnológica de Colombia, 2017.
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