تدریس و حل تمرین nmr

15:10

7:30

13:45

16:10

19:30

4:14

7:16

5:22

4:10

33:58

10:20

22:02

17:51

21:16

27:09

26:45

1:02:00

39:00

11:36

14:32

3:24

49:50

1:28:15

1:06:57

3:03

7:03

2:10

3:26

2:06:36

17:06

9:29

4:16

24:07

25:50

4:54

43:56

38:37

37:05

10:32

11:37