Pardo Novoa, A. (2011). Validation and authentication of education and pedagogical research. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Pardo Novoa, Alberto. Validation and Authentication of Education and Pedagogical Research. Universidad Pedagógica y Tecnológica de Colombia, 2011.
MLA način citiranja (9. izdanje)Pardo Novoa, Alberto. Validation and Authentication of Education and Pedagogical Research. Universidad Pedagógica y Tecnológica de Colombia, 2011.
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