ट्यूटोरियल बहुत कठिन है

1 chapter 1 12-25

2 chapter 2 12-25

3 chapter 3 12-25

4 chapter 4 12-25

5 chapter 5 12-25

6 chapter 6 12-25

7 chapter 7 12-25

8 chapter 8 12-25

9 chapter 9 12-25

10 chapter 10 12-25

11 chapter 11 12-25

12 chapter 12 12-25

13 chapter 13 12-25

14 chapter 14 12-25

15 chapter 15 12-25

16 chapter 16 12-25

17 chapter 17 12-25

18 chapter 18 12-25

19 chapter 19 12-25

20 chapter 20 12-25