Marín-Liébana, Pablo, José Blasco-Magraner, and Ana Botella-Nicolás. 2022. “Analysis of the Evolution of Primary Education Textbooks from a Critical Perspective: Study of the Musical Repertoire From 1994 to 2019”. Revista Electrónica Educare 26 (3), 1-17. https://doi.org/10.15359/ree.26-3.5.