20:09

Haloalkane part 24E

49:15

Haloalkane part 28H

27:51

Basic part 3

39:33

Haloalkane part 20E

20:43

Haloalkane part 16E

32:49

Haloalkane part 25H

26:44

Haloalkane part 17E

58:07

Revision of Haloalkane part 1