Ebrahim, H. R. (2004). Error analysis in the written English of pre-sessional Arab students at IIUM. Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ebrahim, Hallat R. Error Analysis in the Written English of Pre-sessional Arab Students at IIUM. Gombak: Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ebrahim, Hallat R. Error Analysis in the Written English of Pre-sessional Arab Students at IIUM. Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.