Vesga-Bravo, G. J., & Escobar-Sánchez, R. E. (2018). Work on mathematical problem solving and its effect on the beliefs of high school students. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVesga-Bravo, Grace Judith, और Rubén Esteban Escobar-Sánchez. Work on Mathematical Problem Solving and Its Effect on the Beliefs of High School Students. Universidad Pedagógica y Tecnológica de Colombia, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVesga-Bravo, Grace Judith, और Rubén Esteban Escobar-Sánchez. Work on Mathematical Problem Solving and Its Effect on the Beliefs of High School Students. Universidad Pedagógica y Tecnológica de Colombia, 2018.
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