Criado, R. (2017) «Towards the Validation of a Scale for Measuring the Load of Form Focus and Meaning Focus of Textbook Activities in Foreign Language Teaching», Revista Electrónica de Lingüística Aplicada, 15(1), pp. 129–149. Disponible en: https://matrix.aesla.org.es/RAEL/article/view/287 (Accedido: 5 abril 2025).