González-Velasco, C., Feito-Ruiz, I., González-Fernández, M., Álvarez-Arenal, J.-L., & Sarmiento-Alonso, N. (2021). Does the teaching-learning model based on the flipped classroom improve academic results of students at different educational levels? Revista Complutense de Educación, 32(1), 27-39. https://doi.org/10.5209/rced.67851