1. Columbia University Rare Book & Manuscript Library, MS Or 36 DS ID: DS6488 Title: Badīʻ al-ḥisāb Author: Rajab ʻAlī Beg Surūr Place: Lahore Date: 1851.
2. Columbia University Rare Book & Manuscript Library, MS Or 34 DS ID: DS6699 Title: Risālah fī al-barāhīn ʻalá masāʼil al-jabr wa-al-muqābalah Author: Omar Khayyám Place: Lahore Date: 17--?