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دليل المستخدم
Aba Alalaa، H. S. (2009). The Role of Culture on the Expression of Politeness Through the Speech Act of Request: A Comparison of Saudi and British Speakers of English (رسالة ماجستير غير منشورة). University College London، لندن. مسترجع من http://search.mandumah.com/Record/608846
Aba Alalaa، Hessah Shajaan. "The Role of Culture On the Expression of Politeness Through the Speech Act of Request: A Comparison of Saudi and British Speakers of English" رسالة ماجستير. University College London، لندن، 2009. مسترجع من http://search.mandumah.com/Record/608846