Syed Hamid Syed Jaafar Albar. (2019). Ibn Khaldun's theory of 'Asabiyyah and 'Umran': The case of declining political power of the United Malays National Organization (UMNO). Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Syed Hamid Syed Jaafar Albar. Ibn Khaldun's Theory of 'Asabiyyah and 'Umran': The Case of Declining Political Power of the United Malays National Organization (UMNO). Kuala Lumpur: Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Syed Hamid Syed Jaafar Albar. Ibn Khaldun's Theory of 'Asabiyyah and 'Umran': The Case of Declining Political Power of the United Malays National Organization (UMNO). Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2019.