Sokoto, A. B. A. (1992). Theory of profit in secular economic literature and its Islamic formulations: A comparison of the views of selected thinkers. : International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sokoto, Abu Bakr Abdullah. Theory of Profit in Secular Economic Literature and Its Islamic Formulations: A Comparison of the Views of Selected Thinkers. Petaling Jaya: : International Islamic University Malaysia, 1992.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sokoto, Abu Bakr Abdullah. Theory of Profit in Secular Economic Literature and Its Islamic Formulations: A Comparison of the Views of Selected Thinkers. : International Islamic University Malaysia, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.