As I discuss in this question, by far the most popular school of Hindu philosophy is the Vedanta school. But there are five other Astika or orthodox schools of Hindu philosophy: Purva Mimamsa, Samkhya, Yoga, Vaisheshika, and Nyaya. My question is about the Samkhya school, founded by the sage Kapila. There are three works which are variously claimed to be the oldest surviving work of the Samkhya school: Kapila's Samkhya Sutras, Kapila's Tattva Samasa, and Ishwara Krishna's Samkhya Karika. Of these three, scholars consider the Samkhya Karika to be the oldest; the original defining work of the Samkhya school was composed by Kapila, but scholars believe that work is lost and that the Samkhya Sutras and Tattva Samasa are just later works attributed to Kapila.
My question is, what commentaries on Ishwara Krishna's Samkhya Karika are available in English?