(en) L. J. Rogers, «On certain Regular Polygons in Modular Network: Voir appendice: 'Biography of Henry Perigal'», Proceedings London Mathematical Society, 1re série, vol.29, , p.732-735 (DOI10.1112/plms/s1-29.1.706)
(en) Alpay Özdural, «Omar Khayyam, Mathematicians, and Conversazioni with Artisans», Journal of the Society of Architectural Historians, vol.54, no1, (lire en ligne)
(en) Alpay Özdural, «Mathematics and Arts: Connections between Theory and Practice in the Medieval Islamic World», Historia Mathematica, vol.27, , p.171-201 (lire en ligne)