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2. Al-Zumor, Abdul Wahid, 2003. Apologies in Arabic and English: an inter-language and cross-cultural study. Retrieved May 13th, 2003. From http://www.lboro.ac.uk/departments/ea/politeness/apologiesinarabicandenglish.htm.
3. How to Do Things with Words;Austin,1962
4. Rethinking Language and Gender Research: Theory and Practice,1996
5. Interlanguage Pragmatics;Blum-Kulka,1993