1. Longman grammar of spoken and written English;Biber,1999
2. Linguistic differences produced by differences between speaking and writing;Chafe,1985
3. The effect of discourse markers on the comprehension of lectures;Chaudron;Applied Linguistics,1986
4. Discourse structuring in academic lectures to linguistically diverse and unfamiliar audiences;Crawford Camiciottoli,2002
5. Crawford Camiciottoli, B. (2003). Interacting with the audience: modality in business lectures delivered in a cross-cultural context. In R. Facchinetti (Ed.) English modality in perspective. Genre analysis and contrastive studies. Frankfurt am main: Peter Lang, pp. 27–43.