1. Columbia University Rare Book & Manuscript Library, MS Or 344 Title: Rubaiyat Author: Omar Khayyám Place: Isfahan Date: 1688.
2. Columbia University Rare Book & Manuscript Library, MS Or 34 Title: Risālah fī al-barāhīn ʻalá masāʼil al-jabr wa-al-muqābalah Author: Omar Khayyám Place: Lahore Date: 17--?