1. Aal Al-Sheikh, M. (1979). Fatāwā Wa Rasail. Riyadh: The Government of Saudi Arabia.
2. Aal Sulaiman, M. (2006). Al-Iktitab Wa Al-Mutajirah Bi Al-Ashum. Riyadh: Dar Kunuz Eshbelia Li Al-Nashr Wa Al-Tauzee`.
3. AAOIFI. (2015). Shari’a standards for Islamic financial institutions. Manama: Accounting and Auditing Organization for Islamic Financial Institutions.
4. Abbasi, M. Z. (2009). Legal analysis of agency theory: An inquiry into the nature of corporation. International Journal of Law and Management, 51(6), 401–420.
5. Abdul Haleem, M. A. S. (2004). The Qur’an. New York: Oxford University Press Inc.