Brown, P., & Levinson, S. (1987). Politeness. Some universals in language usage . Cambridge: Cambridge University Press.
2.
Carbaugh, D. ( 1988). Talking American: Cultural discourses on Donahue . Nor-wood, NJ: Ablex.
3.
Drew, P., & Heritage, J. (1992.) Talk at work: Interaction in institutional settingsCambridge: Cambridge University Press.
4.
Giddens, A. (1991). Modernity and self identity: Self and society in the late modern age. Cambridge: Polity.
5.
Katriel, T., & Philipsen, G. (1981). ""What we need is communication": "Communication" as a cultural term in some American speech,"Communication Monographs, 48: 301-17.