Al-Atawneh, Muhammad. “Wahhābī Legal Theory as Reflected in Modern Official Saudi Fatwās: Ijtihād, Taqlīd, Sources, and Methodology.” Islamic Law and Society, vol. 18, no. 3-4, 2011, pp. 327–355.
Al-Atawneh, Muhammad K. Wahhabi Islam Facing the Challenges of Modernity Dar Al-Ifta in the Modern Saudi State. Leiden ; Boston, Brill, 2010.
Brown, Jonathan. Misquoting Muhammad: the Challenge and Choices of Interpreting the Prophet's Legacy. Oneworld, 2016.
El-Fadl, Khaled Abou. The Great Theft: Wrestling Islam from the Extremists. New York, NY: Harper San Francisco, 2005. Ebook.
El-Fadl, Khaled Abou. Speaking in God's Name: Islamic Law, Authority and Women. Ebook ed. N.p.: OneWorld Publications, 2001. Ebook.
El-Fadl, Khaled Abou. Reasoning with God: Reclaiming Shari‘ah in the Modern Age. 1st ed. N.p.: Rowman & Littlefield, 2014. Print.
Esposito, John L. Islam: The Straight Path. 5th ed. N.p.: Oxford UP, 2016. Print.
Hourani, Albert. Arabic Thought in the Liberal Age. 5th ed. Cambridge: Cambridge UP, 2011. Print.
Kamali, Mohammad Hashim. "5: Disagreement (Ikhtilaf) and Pluralism in Shari'ah." Shariah Law: Questions and Answers. 2nd ed. N.p.: Oneworld, 2011. 99-122. Print.