تدریس ریاضی اول ابتدا

33:48

13:07

31:25

21:20

12:23

1:22:36

49:54

31:20

31:20

25:38

13:16

28:54

43:41

18:44

14:08

7:35

1:47:42

10:25

6:42

7:30

2:34

5:05

5:49

3:10

3:20

11:15

15:20

1:07:47

2:47

31:42

4:39

1:30

12:22

19:07

13:15

8:22

16:44

3:06

4:18

10:07