1. University of Pennsylvania, Ms. Coll. 390 Item 646 DS ID: DS7824 Title: Philosophical text Author: Keśavamiśra Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll. 390 Item 866 DS ID: DS8030 Title: Tarkabhāṣā Author: Keśavamiśra Date: circa 1700-1850.