1. University of Pennsylvania, Ms. Coll 390, Item 1106 DS ID: DS8240 Title: Gopīcandanopaniṣad Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll 390, Item 1221 DS ID: DS8355 Title: Gopīcandanopaniṣad Date: circa 1700-1850.