edited by Stewart Sutherland, Leslie Houlden, Peter Clarke, Friedhelm Hardy
Routledge, 1988
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Longman Current Affairs, 1992
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Bettany, G.T.
Bracken Books, [date of publication not identified]
Buku Referensi
consulting editor, Wendy Doniger
Encyclopaedia Britannica, Inc., 2006
Buku Referensi
James Fieser, John Powers, editors
McGraw-Hill, 2012
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