Rohaya binti Sulaiman. (2008). Ahmad bin Hanbal: His sufi doctrines with special reference to Kitab Al-Zuhd. International Institute of Islamic Thought and Civilization, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Rohaya binti Sulaiman. Ahmad Bin Hanbal: His Sufi Doctrines with Special Reference to Kitab Al-Zuhd. Kuala Lumpur: International Institute of Islamic Thought and Civilization, International Islamic University Malaysia, 2008.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Rohaya binti Sulaiman. Ahmad Bin Hanbal: His Sufi Doctrines with Special Reference to Kitab Al-Zuhd. International Institute of Islamic Thought and Civilization, International Islamic University Malaysia, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.