18:29 duration 18 minutes 29 seconds
Chapter5
20:38 duration 20 minutes 38 seconds
Chapter 8R
26:35 duration 26 minutes 35 seconds
Week 12 lecture
25:42 duration 25 minutes 42 seconds
Week 11 lecture
33:44 duration 33 minutes 44 seconds
Week 6 lecture
49:27 duration 49 minutes 27 seconds
Week 1 Lecture