1. University of Pennsylvania, Ms. Coll 390, Item 934 DS ID: DS8089 Title: Māṇḍūkyopaniṣadbhāṣya Author: Ādi Shankara Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll 390, Item 1091 DS ID: DS8224 Title: Māṇḍūkyopaniṣadbhāṣya Author: Ādi Shankara Date: circa 1700-1850.