1. University of Pennsylvania, Ms. Coll 390, Item 1641 DS ID: DS8742 Title: Tithinirṇaya Author: Bhaṭṭoji Dīkṣita Date: 1753.
2. University of Pennsylvania, Ms. Coll 390, Item 1648 DS ID: DS8748 Title: Tithinirṇaya Author: Gaṅgārāma Date: 1610.