Shawabikah, Y. A. I. (2005). Library of Congress classification New Subclass KBP: A study on its perceived usefulness and suitability for Islamic law. Kulliyyah of Information and Communication Technology, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Shawabikah, Younis Ahmad Ismail. Library of Congress Classification New Subclass KBP: A Study on Its Perceived Usefulness and Suitability for Islamic Law. Gombak, Selangor Darul Ehsan: Kulliyyah of Information and Communication Technology, International Islamic University Malaysia, 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Shawabikah, Younis Ahmad Ismail. Library of Congress Classification New Subclass KBP: A Study on Its Perceived Usefulness and Suitability for Islamic Law. Kulliyyah of Information and Communication Technology, International Islamic University Malaysia, 2005.