[1]
Pérez-García, A.M., Bermúdez, J., Sanjuán, P., Rueda, B. and Sánchez-Elvira-Paniagua, Ángeles 2012. Perceived competence and level of task difficulty: Performance and heart rate reactivity. Acción Psicológica. 1, 1 (Jul. 2012), 31–44. DOI:https://doi.org/10.5944/ap.1.1.540.