Sepúlveda-Delgado, O. (2015). Study of the didactic – mathematical knowledge of a university teacher: A theoretical framework of research. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Sepúlveda-Delgado, Omaida. Study of the Didactic – Mathematical Knowledge of a University Teacher: A Theoretical Framework of Research. Universidad Pedagógica y Tecnológica de Colombia, 2015.
MLA način citiranja (9. izdanje)Sepúlveda-Delgado, Omaida. Study of the Didactic – Mathematical Knowledge of a University Teacher: A Theoretical Framework of Research. Universidad Pedagógica y Tecnológica de Colombia, 2015.
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