1. University of Pennsylvania, Ms. Coll. 390 Item 867 DS ID: DS8022 Title: Laghuvyākhyā Author: Nārāyaṇatīrtha Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll. 390 Item 1953 DS ID: DS9034 Title: Bhāṭṭabhāṣāprakāśa Author: Nārāyaṇatīrtha Date: circa 1700-1850.