Díaz-Martín, C., Gómez-Parra, M.-E. and Tafazoli, D. (2022) “Studying the professional identity of pre-service teachers of primary education in CLIL: Design and validation of a questionnaire ”, Aula Abierta, 51(4), pp. 329–340. doi: 10.17811/rifie.51.4.2022.329-340.