social science paper presentation

1:10

15:13

7:01

4:17

8:45

13:07

9:56

4:06

2:29

20:58

2:08

21:38

33:20

15:21

1:35:50

2:51

55:04

4:43

15:05

14:39

30:26

12:01

19:42

6:29

4:31:35

51:51

32:38

18:49

18:06

20:07

10:11

1:44:53

1:25:25

3:19

32:49

1:04:26

37:06

1:24:21

33:35

6:44:18

10:34

11:40

1:14:20

1:17:01

48:08

1:25:40

17:13

2:21:23

4:58

1:22:07

39:07

8:04

15:19

20:29

43:41

26:44

7:07

1:52:23

29:07

19:32