1. S.J. Abas & A.S. Salman, Symmetries of Islamic Geometrical Patterns, World Scientific, 1995
2. M.A. Armstrong, Groups and Symmetry, Springer Verlag, 1988.
3. J. Bourgoin, Elements de l'art arabe, Fermin-Didot, Paris, 1879. Reprint available: Arabic Geometrical Pattern and Design, Dover, 1974.
4. F.J. Budden, The Fascination of Groups, Cambridge University Press, 1972.
5. M. Emmer (ed.), The Visual mind: art and mathematics, MIT Press, 1993.