1. University of Pennsylvania, Ms. Coll. 390 Item 1267 DS ID: DS8409 Title: Gāyatrībhāṣya Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll. 390 Item 2007 DS ID: DS9069 Title: Gāyatrībhāṣya Author: Khaṇḍadīkṣita Date: circa 1700-1850.