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Đọc thêm

• Corbin, Henry (1993). History of Islamic Philosophy, translated by Liadain Sherrard and Philip Sherrard. Kegan Paul International in association with Islamic Publications for The Institute of Ismaili Studies. ISBN 0710304161. 
• Halm, Heinz (2004). Shi'ism. Edinburgh University Press. ISBN 0748618880. 
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• Lalani, Arzina R. (2000). Early Shi'i Thought: The Teachings of Imam Muhammad Al-Baqir. I.B.Tauris. ISBN 1860644341. 
• Momen, Moojan (1985). An Introduction to Shi'i Islam: The History and Doctrines of Twelver Shi'ism. Yale University Press. ISBN 0300034997. 
• Moosa, Matti (1988). Extremist Shiites: The Ghulat Sects. Syracuse University Press. ISBN 0815624115. 
• Nasr, Seyyed Hossein; Hamid Dabashi (1989). Expectation of the Millennium: Shiʻism in History. SUNY Press. ISBN 0-88706-843-X.  Chú thích sử dụng tham số |coauthors= bị phản đối (trợ giúp)
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• http://www.jewishencyclopedia.com/view.jsp?artid=189&letter=A