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.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (9ú heag.)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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.