Mejía Echeverri, S. A. (2017). Programs for Teaching Drawing in the 1890S. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMejía Echeverri, Silvana Andrea. Programs for Teaching Drawing in the 1890S. Universidad Pedagógica y Tecnológica de Colombia, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMejía Echeverri, Silvana Andrea. Programs for Teaching Drawing in the 1890S. Universidad Pedagógica y Tecnológica de Colombia, 2017.
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