Sayago, J. M., & Azaf, L. V. (2015). Salaries, incentives and teaching intellectual production in the public university in Colombia. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Sayago, Jhon Méndez, i Leonardo Vera Azaf. Salaries, Incentives and Teaching Intellectual Production in the Public University in Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2015.
MLA način citiranja (9. izdanje)Sayago, Jhon Méndez, i Leonardo Vera Azaf. Salaries, Incentives and Teaching Intellectual Production in the Public University in Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2015.
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