SpringerLink (Online Service). (2011). Reason, spirit and the sacral in the new enlightenment: Islamic metaphysics revived and recent phenomenology of life. Springer Netherlands.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)SpringerLink (Online Service). Reason, Spirit and the Sacral in the New Enlightenment: Islamic Metaphysics Revived and Recent Phenomenology of Life. Dordrecht: Springer Netherlands, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)SpringerLink (Online Service). Reason, Spirit and the Sacral in the New Enlightenment: Islamic Metaphysics Revived and Recent Phenomenology of Life. Springer Netherlands, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.