APA (7 वां संस्करण) प्रशस्ति पत्र

Contreras, O. E., Pedraza Avella, A. C., & Herrera Gómez, C. (2015). Is social inclusion of workforce in Colombia in counter of what sustainability means? Universidad Pedagógica y Tecnológica de Colombia.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Contreras, Orlando Enrique, Aura Cecilia Pedraza Avella, और Carolina Herrera Gómez. Is Social Inclusion of Workforce in Colombia in Counter of What Sustainability Means? Universidad Pedagógica y Tecnológica de Colombia, 2015.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Contreras, Orlando Enrique, et al. Is Social Inclusion of Workforce in Colombia in Counter of What Sustainability Means? Universidad Pedagógica y Tecnológica de Colombia, 2015.

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