1. Talk in teaching and learning: International perspectives;Alexander,2003
2. Discussion-based approaches to developing understanding: Classroom instruction and student performance in middle and high school english;Applebee;American Educational Research Journal,2003
3. Formación inicial docente en Chile: Calidad y políticas;Ávalos,2010
4. Estética de la creación verbal;Bajtin,1982
5. Assessing observer agreement;Bakerman,1997