1. Bialystok, E. (1990). Communication strategies: a psychological analysis of second-language use. Oxford: Blackwell.
2. Bransford, J.D., Vye, N., Kinzer, C., & Risko, V. (1990). Teaching thinking and cognitive instruction (pp. 381-413). Hillsdale, NJ: Lawrence Erlbaum Associates.
3. Bygate, M. (1987). Speaking. New York: Oxford University Press.
4. Chamot, A. U. (2004). Issues in Language Learning Strategy Research and Teaching. Electronic Journal of Foreign Language Teaching, 1 (1), 14-26.
5. Chamot, A. U., Barnhardt, S., El- Dinary, P. B., & Robbins, J. (1999). The Learning Strategies Handbook. White Plains New York: Addison-Wesley Longman.