4[1]Brown, G. et al. (Eds.). (1994). Language and understanding. New York: Oxford University Press.
5[2]Burns, A., Joyce, H. and Gollin, S. (1996). "I see what you mean": Using spoken discourse in the classroom. Macquaire University, Sydney: National Center for English language Teaching and Research.
6[3]Lightbown, P. M. (2002) Classroom SLA research and second language teaching. Applied Linguistics, 21,431 -462.
7[4]Rost, M. (2001). Listening. In R. Carter & D. Nunan (Eds.), The Cambridge guide to teaching English to speakers of other languages (7- 13). New York: Cambridge University Press.