Tabbaa 1991, pp. 119–148. Tabbaa, Yasser (1991). "The Transformation of Arabic Writing: Part I, Qur'ānic Calligraphy". Ars Orientalis. 21: 119–148. ISSN0571-1371. JSTOR4629416.
Tabbaa 1991, pp. 119–148. Tabbaa, Yasser (1991). "The Transformation of Arabic Writing: Part I, Qur'ānic Calligraphy". Ars Orientalis. 21: 119–148. ISSN0571-1371. JSTOR4629416.