Najafabadi, S. A. (2013). The pragmatic development of Iranian English learners across proficiency levels in the performance of the requestive speech act.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Najafabadi, Shahla Amooaliakbari. The Pragmatic Development of Iranian English Learners Across Proficiency Levels in the Performance of the Requestive Speech Act. 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Najafabadi, Shahla Amooaliakbari. The Pragmatic Development of Iranian English Learners Across Proficiency Levels in the Performance of the Requestive Speech Act. 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.