آقاگلزاده، فردوس (1392). فرهنگ توصیفی تحلیل گفتمان و کاربردشناسی. تهران: انتشارات علمی.
Brown, G. and Yule G. 1989. Discourse Analysis, Cambridge University Press.
Cheng, S. W. 2005. An exploratory cross-sectional study of interlanguage pragmatic development of expressions of gratitude by Chinese learners of English. University of Iowa.
Cheng, K. W., Wang, Y. and Yan, H. M. 2017. Study of Relation between EFL Students' Cognitive Style and Pragmatic Competence. Journal of Electronic Science and Technology, 15(1), 41-47.
Cho, H. C. and Abe, S. 2013. Is two-tailed testing for directional research hypotheses tests legitimate? Journal of Business Research, 66(9), 1261-1266.
Cui, X. 2012. A Cross-linguistic Study on Expressions of Gratitude by Native and Non-native English Speakers. Journal of Language Teaching & Research, 3(4).
Diaz Perez, F. J. 2005. The speech act of thanking in English: differences between native and non-native speakers' behaviour.
Ehtesham Daftari, G. and Tavil, Z. M. 2015. The intersection of pragmatics and applied linguistics in teaching speech acts: Apologies perspective. International Journal of Curriculum and Instruction, 7(2), 1–17.
Eslami-Rasekh, Z. 2005. Raising the pragmatic awareness of language learners. ELT Journal, 59(3), 199–208.
Hymes, D. 1966. On Communicative Competence. Paper presented at the Research Planning Conference on Language Development among Disadvantage Children.
ـــــــــ. 1972. On Communicative Competence. Sociolinguistics,269-293.
McCullough, M. E., Kilpartrick, S. D., Emmons, R. A., and Larson, D. B. 2001. Is Gratitude a Moral Affect? Psychological Bulletin, 127(2), 249–266.
Pishghadam, R. and Zarei, S. 2011. Expressions of gratitude: A case of EFL learners. Review of European Studies, 3(2), 140–149.
Rathert, S. 2013. The Language Outside and Inside the Foreign Language Classroom : Speech Act Theory and Discourse Analysis. The Internet Journal Language, Culture and Society, (36), 81–87.
Verschueren, J. 1999. Understanding pragmatics. Oxford University Press.
Yoosefvand, A. and Eslami Rasekh, A. 2015. A comparative study of gratitude speech act between Persian and English speakers. Journal of Applied Linguistics and Language Research, 1(2), 44-61.
Yule, G. 1996. Pragmatics. Oxford: Oxford University Press.
ـــــــ. 2000. Pragmatics. Oxford: Oxford University Press.