1. University of Pennsylvania, Ms. Coll. 390 Item 2091 DS ID: DS9165 Title: Tarkadīpikā Author: Annambhatta Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll. 390 Item 2115 DS ID: DS9182 Title: Tarkadīpikā Author: Annambhatta Date: circa 1700-1850.