Capítulo 2. Marco Teórico. (2020). In M. C. Gamboa Mora, V. Ahumada De La Rosa, S. P. Vera-Monroy, A. Mejía-Camacho, & J. C. Romero, Study of the Variables Associated with Academic Performance in the Chemistry Subject of Four Colombian Universities: Phase I. Learning Strategies at University Level (pp. 45-130). Sello Editorial UNAD. https://doi.org/10.22490/