1. University of Pennsylvania, LJS 286 DS ID: DS604 Title: Taḥrīr Uṣūl al-handasah wa-al-ḥisāb. Author: Nasir al-Din al-Tusi Date: A.H. 890 (1485)
2. University of Pennsylvania, LJS 295 DS ID: DS608 Title: Kitāb-i Advār. Author: Safi al-Din al-Urmawi Place: Iran Date: A.H. 815 (1412)