what is kvl law

23:58

4:20

26:50

1:43

18:29

12:25

3:27

2:33

کوتاه

7:10

3:25

2:18

1:56

2:55

18:06

3:40

1:44

17:22

3:40

4:06

4:32

4:32

2:33

12:01

3:19

4:12

3:08

کوتاه

5:30

1:35

3:27

5:45

2:08

10:58

4:13

2:01

3:13

39:52

3:19

9:20