Nurul Izzah binti Yahaya. (2010). The phenomenon of free inter-mingling among students of opposite sex at IIUM: A juristic evaluation. Kulliyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nurul Izzah binti Yahaya. The Phenomenon of Free Inter-mingling Among Students of Opposite Sex at IIUM: A Juristic Evaluation. Kuala Lumpur: Kulliyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nurul Izzah binti Yahaya. The Phenomenon of Free Inter-mingling Among Students of Opposite Sex at IIUM: A Juristic Evaluation. Kulliyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2010.