تدریس کتاب کار و فناوری

3:13

17:20

17:20

26:36

13:13

14:14

10:07

9:10

22:32

16:36

21:17

16:02

4:23

24:57

25:15

14:28

6:24

12:34

4:40

40:56

6:12

56:49

18:50

17:52

17:19

17:51

19:21

18:41

14:57

16:53

18:33

18:34

30:34

3:00

22:10

33:40

17:58

21:01

23:32

23:56