Abualnassr, A. A., & Alahaydib, M. (2011). The effectiveness of using cooperative learning for academic achievement of intermediate level students in english. Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abualnassr, Abrar Abdulrahman, و Mohammed Alahaydib. The Effectiveness of Using Cooperative Learning for Academic Achievement of Intermediate Level Students in English. Riyadh: Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abualnassr, Abrar Abdulrahman, و Mohammed Alahaydib. The Effectiveness of Using Cooperative Learning for Academic Achievement of Intermediate Level Students in English. Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2011.