Fernández Agoero, María. “Analysis of Topicality in Classroom Discourse: Topic Switch and Topic Drift in Conversations in EFL Contexts”. Estudios Ingleses de la Universidad Complutense 11 (January 1, 2003): 73–89. Accessed November 25, 2024. https://revistas.ucm.es/index.php/EIUC/article/view/EIUC0303110073A.