6Bejarano, Y. 1987. A cooperative small-group methodology in the language classroom [J]. TESOL Quarterly 21:483-504.
7Bejarano, Y., T. Levine, E. Olshtain&J. Steiner. 1997. The skilled use of interaction strategies:Creating a framework for improved small-group communicative interaction in the language classroom [J]. System 25.. 203-214.
8Brown, H. 2001. Teaching by Principles: An Interactive Approach to Language Pedagogy [M]. White Plains, N.Y. : Addison Wesley Longman.
9Buckwalter, P. 2001. Repair sequences in Spanish L2 dyadic discourse: A descriptive study [J]. The Modern Language Journal 85 : 380-397.
10Cao, Y. & J. Philp. 2006. Interactional context and willingness to communicate: A comparison of behavior in whole class, group and dyadic interaction [J]. System 34:480-493.
