Corredor de Porras, M. (2011). Cognitive instruments in mathematical thinking summary. Universidad Pedagógica y Tecnológica de Colombia.
Citazione stile Chigago Style (17a edizione)Corredor de Porras, Magally. Cognitive Instruments in Mathematical Thinking Summary. Universidad Pedagógica y Tecnológica de Colombia, 2011.
Citatione MLA (9a ed.)Corredor de Porras, Magally. Cognitive Instruments in Mathematical Thinking Summary. Universidad Pedagógica y Tecnológica de Colombia, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.
