Ordóñez-Ortega, O., Gualdrón-Pinto, E., & Amaya-Franky, G. (2019). Variational thinking mediated with algebraic tiles and virtual manipulators. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Ordóñez-Ortega, Odair, Elgar Gualdrón-Pinto, i Germán Amaya-Franky. Variational Thinking Mediated with Algebraic Tiles and Virtual Manipulators. Universidad Pedagógica y Tecnológica de Colombia, 2019.
MLA način citiranja (9. izdanje)Ordóñez-Ortega, Odair, et al. Variational Thinking Mediated with Algebraic Tiles and Virtual Manipulators. Universidad Pedagógica y Tecnológica de Colombia, 2019.
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