Al-Mugren, M., & Ahmed, R. (2009). The impact of cooperative language learning on improving the writing competency of Third-year English majored college students. Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Mugren, Maha, و Rafik Ahmed. The Impact of Cooperative Language Learning on Improving the Writing Competency of Third-year English Majored College Students. Riyadh: Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2009.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Mugren, Maha, و Rafik Ahmed. The Impact of Cooperative Language Learning on Improving the Writing Competency of Third-year English Majored College Students. Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2009.