privacy
BCHEM 202 LECT 4 G3 1:08:05 96 58 0
BCHEM 202 LECT 3 G 3 1:08:09 119 59 0
BCHEM 202 LECT 2 G3 1:08:13 104 49 0
BCHEM 202 LEC 1 G3 1:02:05 216 75 0