Christoph (2004) -- The Syro-Aramaic Reading Of The Koran: a contribution to the decoding of the language of the Qur'an, Berlin, Verlag Hans Schiler, 1 May
Encyclopedia of the Qur'an Ali (1991), p. 507 jizya in Islam Archived 2011-10-17 at the Wayback Machine, Load-Islam "jizyah, Jihad… or Islam? - Reading Islam.com
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