1. The mathematical tourist
2. Billings, R. W. (1851). The power of form applied to geometric tracery. William Blackwood and Sons.
3. Islamic Geometric Patterns
4. Bourgoin, J. (1879). Les eléments de l'art arabe: le trait des entrelacs. Firmin-Didot; Plates reprinted in (1973). Arabic Geometric Pattern and Design. Dover Publications.
5. Coxeter, H. S. M. (1961). Introduction to geometry. Wiley and Sons.