Pierce McMahon, Joana, and Pilar Durán Escribano. “Analysing Written Production Competence Descriptors for Academic and Professional Purposes and Their Calibration to the CEFR”. Ibérica, no. 23 (January 2, 2012): 109–130. Accessed March 29, 2024. https://www.revistaiberica.org/index.php/iberica/article/view/312.