Mutawa, A. M. (1989). The Ulama of Njd from The Sixteenth Century to The Mid-Eighteenth Century. University of California, Department of History.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mutawa, Abdullah M. The Ulama of Njd from The Sixteenth Century to The Mid-Eighteenth Century. California, Los Angeles: University of California, Department of History, 1989.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Mutawa, Abdullah M. The Ulama of Njd from The Sixteenth Century to The Mid-Eighteenth Century. University of California, Department of History, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.