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• Chastain, K. (1988). Developing Second-Language Skills. Orlando: Harcourt Brace Jovanovich.
• Genesee, F., and Upshur, J. A. (1996). Classroom-based Evaluation in Second Language Education. Cambridge: Cambridge University Press.
• Hughes, A. (2003). Testing for Language Teachers. (2nd Ed.) Cambridge: Cambridge University Press.