Álvarez Ulloa, L. C. (2020). Effects during the COVID-19 pandemic, in the mental health. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रÁlvarez Ulloa, Luisa Cristina. Effects During the COVID-19 Pandemic, in the Mental Health. Universidad Pedagógica y Tecnológica de Colombia, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रÁlvarez Ulloa, Luisa Cristina. Effects During the COVID-19 Pandemic, in the Mental Health. Universidad Pedagógica y Tecnológica de Colombia, 2020.
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