APA-čujuhus (7. p.)

Espinosa Romero, C. I., & Jiménez Espinosa, A. (2014). Construction of the concept of ratio and constant ratio from the social epistemological viewpoint. Universidad Pedagógica y Tecnológica de Colombia.

Chicago-čujuhus (17. p.)

Espinosa Romero, César Iván, juo Alfonso Jiménez Espinosa. Construction of the Concept of Ratio and Constant Ratio from the Social Epistemological Viewpoint. Universidad Pedagógica y Tecnológica de Colombia, 2014.

MLA-čujuhus (9. p.)

Espinosa Romero, César Iván, juo Alfonso Jiménez Espinosa. Construction of the Concept of Ratio and Constant Ratio from the Social Epistemological Viewpoint. Universidad Pedagógica y Tecnológica de Colombia, 2014.

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