1. University of Pennsylvania, Ms. Coll. 390 Item 1370 Bookmark DS ID: DS8507 Title: Navagrahamantra Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Coll. 390 Item 1388 Bookmark DS ID: DS8519 Title: Navagrahamantra Date: circa 1700-1850.
3. University of Pennsylvania, Ms. Coll. 390 Item 2030 Bookmark DS ID: DS9100 Title: Navagrahamantra Date: circa 1700-1850.