BachmanL. F. (1990). Fundamental considerations in language testing. Oxford University Press.
2.
BachmanL. F.PalmerA. S. (2010). Language assessment in practice: Developing language assessments and justifying their use in the real world. Oxford University Press.
3.
HardingL.McNamaraT. (2018). Language assessment: The challenge of ELF. In JenkinsJ.BakerW.DeweyM. J. (Eds.), The Routledge handbook of English as a lingua franca (pp. 570–582). Routledge.