2Graham S, Perin D. A meta - analysis of writing instruction for adolescent students. Journal of Educational Psychology, 2007, 99(3): 445-476
3Johnson D W, Johnson R T. Learning together and alone: cooperative, competitive, and individualistic learning(5th edition). Boston : Allyn & Bacon, 1999
4McCarthey S J, McMahon S. From convention to invention: three approaches to peer interactions during writing. In: Hertz-Lazarowitz eds. Interaction in cooperative groups: the theoretical anatomy of group learning. Cambridge: Cambridge University Press, 1995 : 17 - 35
5Saddler B, Graham S. The effects of peer - assisted sentence - combining instruction on the writing performance of more and less skilled young writers. Journal of Educational Psychology, 2005, 97(1): 43-54
6Yarrow F, Topping K J. Collaborative writing: the effects of metacognitive prompting and structured peer interaction. British Journal of Educational Psychology, 2001, 71 (3): 261 - 282
7Graham S, Harris K, Mason L. Improving the writing performance, knowledge, and self- efficacy of struggling young writers: the effects of self - regulated strategy development. Contemporary Educational Psychology, 2005, 30(2): 207-241
8Harris K, Graham S, Mason L. Improving the writing performance, knowledge, and self- efficacy of struggling young writers: the effects of self- regulated strategy development with and without peer support. American educational research journal, 2006, 43(2) : 295 - 340
9Hidi S, Berndorff D, Ainley M. Children's argument writing, interest and self-efficacy: an intervention study. Learning and Instruction, 2001(12): 429- 446
10Coogan D. Email " tutoring " as collaborative writing. In: Hobson E H, eds. Wiring the Writing Centre. Salt Lake City: Utah State University Press, 1998:25 -43
