Sierra Villamil, N. L. (2022). Strengthening critical thinking based on the scientific method in second grade students. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Sierra Villamil, Nathalia Lizeth. Strengthening Critical Thinking Based on the Scientific Method in Second Grade Students. Universidad Pedagógica y Tecnológica de Colombia, 2022.
MLA način citiranja (9. izdanje)Sierra Villamil, Nathalia Lizeth. Strengthening Critical Thinking Based on the Scientific Method in Second Grade Students. Universidad Pedagógica y Tecnológica de Colombia, 2022.
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