1Sato, C. 1986. Conversation and interlanguage development :Rethingking the connection. In Day (ed). Talking to Learn : Conversation in Second Language Acquisition. Rowley, Mass. : Newbury House.
2Swain, M. 1985, Communicative competence some roles of comprehensible input and comprehensible output in its development. In Gass and Madden(eds). Input in Second language Acquisition. Rowley, Mass, : Newbury House.