1. Bachman, L., & Palmer, A. (1996). Language testing in practice. Oxford University Press.
2. Bachman, L., & Palmer, A. (2010). Language assessment in practice. Oxford University Press.
3. Brown, H. D. (2004). Language assessment: Principles and classroom practices. Pearson Education.
4. Chan, S. H. C., Wu, R. Y. F., & Weir, C. J. (2014). Examining the context and cognitive validity of the GEPT advanced writing task 1: A comparison with real-life academic writing tasks. LTTC-GEPT research report no. RG-03. LTTC.
5. Chapelle, C. A., Enright, M. K., & Jamieson, J. (Eds.) (2008). Building a validity argument for the test of English as a foreign language. Routledge.