1. University of Pennsylvania, Ms. Coll. 390 Item 1817 DS ID: DS8906 Title: Sūryasiddhānta Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll. 390 Item 1834 DS ID: DS8919 Title: Sūryasiddhānta Author: Viśvanātha Daivajña Date: circa 1700-1850.