1. University of Pennsylvania, Ms. Coll 390, Item 560 DS ID: DS7755 Title: Ātmabodha Author: Ādi Shankara Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll 390, Item 1112 DS ID: DS8279 Title: Ātmabodha Author: Ādi Shankara Date: circa 1778-1842.