1. Barr, R. and Tagg, J. (1995). From Teaching to Learning: A New Paradigm for Undergraduate Education. Change. November/December.
2. Brown, H.D. (1987). Principles of language learning and teaching. Englewood cliffs. Prentice Hall.
3. Brown, Laboard, K. (2003). From teacher-centered to learner-centered curriculum: Improving learning in diverse classrooms.
4. Chastain, K. (1988). Developing second language skills, theory and practice. HBJ publishers.
5. Cohen, E. (1986). Designing group work: Strategies for the heterogeneous classroom. New York: Teachers College Press.