4. University of Pennsylvania, Ms. Coll 390, Item 917 Title: Taittirīyopaniṣadbhāṣyavārttika Author: Ādi Shankara Date: 1792.
8. University of Pennsylvania, Ms. Coll 390, Item 2513 Title: Bhajagovinda Author: Ādi Shankara Date: 1762.