1. University of Pennsylvania, Ms. Coll. 390 Item 625 DS ID: DS7813 Title: Tarkadīpikā Author: Annambhatta Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll. 390 Item 629 DS ID: DS7815 Title: Tarkadīpikā Author: Annambhatta Date: circa 1700-1850.