Gaber, Tammy. “The Cosmic Script: Sacred Geometry and the Science of Arabic Penmanship By Ahmed Moustafa and Stefan Sperl (London: Thames and Hudson, 2014. 692 pages.)”. American Journal of Islam and Society 33, no. 2 (April 1, 2016): 125–129. Accessed July 5, 2024. https://mail.ajis.org/index.php/ajiss/article/view/912.