The Encyclopedia of World Mythology and Legend. Anthony S. Mercatante (ed.). New York, 1988.
The Encyclopedia of World Religions.Wendy Doniger (ed.). Springfield, Mass., 1999.
The New Encyclopedia of Islam. Cyril Glasse (ed.). Walnut Creek, Calif., 2002.
The Oxford Dictionary of World Religions. John Bowker (ed.). Oxford, 1997.
The Oxford Encyclopedia of the Modern Islamic World. John L. Esposito (ed.). Oxford, 1995.