1. Princeton University, Islamic Manuscripts Garrett no. 510H Bookmark DS ID: DS2775 Title: Zīj al-jadīd Author: Ibn al-Shatir Date: 1000-1899
2. Free Library of Philadelphia, Lewis E M 33:13 Bookmark DS ID: DS5274 Title: Calendar and August Place: undetermined Date: 1000-1500
3. Free Library of Philadelphia, Lewis T114 Bookmark DS ID: DS5904 Title: Calendar Place: undetermined Date: 1000-1500