1. Arends, R.I. (2007). Learning to teach, seventh edition. New York: Mc Graw Hill.
2. Cazden, C. (1988). Classroom discourse. Portsmouth, NH: Heinemann.
3. Dillon, J.T. (1994). Using discussion in the classroom. Philadelphia: Open University Press.
4. Engle, S. & Ochoa, A. (1988). Education for democratic citizenship: Decision making in the social studies. New York: Teachers College Press. .
5. Faust, J.L., & Paulson, D.R. (1998). Active learning in the college classroom. Journal on Excellence in College Teaching, 9(2), 3-24.