Tragant, Elsa, y Mireia Trenchs. «Unplanned Vocabulary Instruction: A Case Study of Three Second Language Classrooms». Miscelánea: A Journal of English and American Studies 18 (diciembre 31, 1997): 327–346. Accedido enero 23, 2026. https://papiro.unizar.es/ojs/index.php/misc/article/view/11301.