Annemarie Schimmel; Koln : J. Hegner, 1968 Islamiccalligraphy / by Annemarie Schimmel; Leiden : E. J. Brill, 1970 Islamic literatures of India / Annemarie Schimmel;
Blue Koran Debate ", Elements, 2 (1), 2006, pp. 10–19 Alain George, "Calligraphy, Colour and Light in the Blue Qur'an", Journal of Qur’anic Studies, vol