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Kathryn Wilkersen(editor): Signs & Symbols. 2008
Joseph Sheppherd: The Elements of the Bahá’i Faith. 1993
Adele Nozedar: The Element Encyclopedia of Secret Signs and Symbols. 2008
Larousse: Dictionary of Beliefs & Religion. 1994
Prem P. Bhalla: Hindu Rites, Rituals, Customs and Traditions. 2007
Breuilly, O’Brian &Palmer: Festivals of the World 2002
Cotterell & Storm: The Ultimate Encyclopedia of Mythology 1999
Author Cotterell: The Encyclopedia of Mythology 2001
Pramesh Ratnaker: Hinduism. 1996
John Bowker: World Religions. 2006
Jon Bowker (editor): The Oxford Dictionary of World Religions. 1999
Penguin Reference: Dictionary of Symbols
J.E. Cirlot: A Dictionary of Symbols. 2001
Hayyim Schauss: The Jewish Festivals. 1996
Richard D. Bank: 101 Things Everyone Should Know about Judaism. 2005
Rabbi Morris N. Kertzer: What is a Jew? 1996
Kieth Stevens: Chinese Gods. 1997
Clio Whittaker: An Introduction to Oriental Mythology. 1995
Britannica Encyclopedia of World Religions. 2006
Richard Buxton: The Complete World of Greek Mythology. 2004
Anne Marie Schimmel: The Mystery of Numbers. 1993
Jan Knappert: The Encyclopedia of Middle Eastern Mythology & Religion. 1993
Arthur Kurzweil: Kabbalah for Dummies. 2007
J.C. Cooper: An Illustrated Encyclopedia of Traditional Symbols. 1997
Alison Jones: The Wordsworth Dictionary of Saints. 1995
Rachel Storm: Ilustrated Encyclopedia – Eastern Mythology. 2001
Kieren Barry: The Greek Qabalah. 1999