1. Austin, J. L. (1962). How to Do Things with Words. Clarendon Press.
2. Searle, J. R. (1969). Speech Acts: An Essay in the Philosophy of Language. Cambridge University Press.
3. Yule, G. (1996). Pragmatics. Oxford University Press.
4. Bach, K., & Harnish, R. M. (1979). Linguistic Communication and Speech Acts. MIT Press.
5. Leech, G. N. (1983). Principles of Pragmatics. Longman.