15. University of Pennsylvania, Ms. Coll 390, Item 1921 Title: Sāṅkhyasūtra Author: Kapila Date: circa 1700-1850.
17. University of Pennsylvania, Ms. Coll 390, Item 1929 Title: Sāṅkhyasūtra Author: Kapila Date: 1881.
18. University of Pennsylvania, Ms. Coll 390, Item 1930 Author: Vācaspatimiśra Date: circa 1700-1850.