Martín-Romero, Nuria, and Álvaro Sánchez-López. “Motivational and Self-Concept Factors Implicated in Academic Performance at Secondary School”. Apuntes de Psicología 39, no. 2 (July 8, 2021): 65–74. Accessed October 26, 2026. https://apuntesdepsicologia.es/index.php/revista/article/view/901.