カダル派
Islamic Philosophy A-Z, Peter S. Groff and Oliver Leaman. Edinburgh: Edinburgh University Press, 2007. ISBN 0-7486-2089-3ISBN 0-7486-2089-3.
An Introduction to Islam, David Waines, Cambridge, New York: Cambridge University Press, 2003. ISBN 0-521-53906-4ISBN 0-521-53906-4.