2[2]Cooper, Marilyn M and Holzman, M. Writing as Social Action. Portsmouth, NH: Heinemann/Boynton-look 1989
3[3]DiDardo, A. & S.W. Freedman. Peer Response Groups in the Writing Classrooms: Theoretical Foundations and New Directions. Review of Education Research. 58 No. 2. 1988
4[4]Joy Kreeft Peyton, Chuck, Jones, Andrea Vincent, and Les Greenblatt: Implementing Writing Workshop with ESOL Students:Visions and Realities. TESOL Quarterly Vol.28 No.3 Autumn 1994.
5[5]Webb. Noreen, M. Assessing Students in Small Collaborative Groups. College English 51. No. 16. Oct. 1997
6[6]Webb, N. M. & Palinscar A.S. Group Processes in the Classroom. N.Y. Macmillan, 1996