Brown, J. A. C. (2015) Is Islam easy to understand or not? Salafis, the democratization of interpretation and the need for the Ulema. Journal of Islamic Studies 26 (2), 117–44.
Fish, S. (1980) Is There a Text in This Class? The Authority of Interpretive Communities . Cambridge: Harvard University Press.
Hallaq, W. B. (2012) The Impossible State: Islam, Politics, and Modernity's Moral Predicament . New York: Columbia University Press.
Walī Allāh, S. (1983) Al-Inṣāf fī bayān asbāb al-ikhtilāf . Edited by Abd al-Fattāḥ Abū Ghudda. Beirut: Dār al-Nafā'is.