46:15 duration 46 minutes 15 seconds
EPS 131 Lecture 14a (Second Part) Lecture 14b…
EPS 131 Lecture 14a (Second Part) Lecture 14b (Second Part)
55:13 duration 55 minutes 13 seconds
EPS 131 Lecture 8
50:25 duration 50 minutes 25 seconds
EPS 131 Lecture 4-6 (Second part) and Lecture 7
44:00 duration 44 minutes 0 seconds
EPS 131 Lectures (4-6, First Part)