Castellanos Niño, C. A. (2012). Social interaction in school advisory for school projects through e-learning. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Castellanos Niño, Carlos Alberto. Social Interaction in School Advisory for School Projects Through E-learning. Universidad Pedagógica y Tecnológica de Colombia, 2012.
MLA način citiranja (9. izdanje)Castellanos Niño, Carlos Alberto. Social Interaction in School Advisory for School Projects Through E-learning. Universidad Pedagógica y Tecnológica de Colombia, 2012.
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