Abubakar, I. Y. (2009). Aspects of Shaybani's doctrine on earning a living: Annotated translation on selection from kitab al-Kasb. International Institute of Islamic Thought and Civilization, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abubakar, Isma'il Ya'u. Aspects of Shaybani's Doctrine on Earning a Living: Annotated Translation on Selection from Kitab Al-Kasb. Kuala Lumpur: International Institute of Islamic Thought and Civilization, International Islamic University Malaysia, 2009.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abubakar, Isma'il Ya'u. Aspects of Shaybani's Doctrine on Earning a Living: Annotated Translation on Selection from Kitab Al-Kasb. International Institute of Islamic Thought and Civilization, International Islamic University Malaysia, 2009.