1. Princeton University, Islamic Manuscripts Garrett no. 175Y DS ID: DS29040 Title: al-Mustaḥḍarāt fī ḥisāb al-majhūlāt Author: Quyūjaqī, Muḥammad ʻĀṭif ibn ʻAbd al-Raḥmān, d. 1847 Date: 1800-1899