1. University of Pennsylvania, Ms. Coll. 390 Item 607 DS ID: DS7790 Title: Bhāṣāpariccheda Author: Viśvanātha Nyāyapañcānana Bhaṭṭācārya Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll. 390 Item 626 DS ID: DS7804 Title: Bhāṣāpariccheda Author: Viśvanātha Nyāyapañcānana Bhaṭṭācārya Date: circa 1700-1850.