51

1 บทนำ 

2 1 

3 2 

4 3 

5 4 

6 5 

7 6 

8 7 

9 8 

10 9 

11 10 

12 11 

13 12 

14 13 

15 14 

16 15 

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18 17 

19 18 

20 19 

21 20 

22 21 

23 22 

24 23 

25 24 

26 แจ้งงับๆ 

27 25 

28 26 

29 27 

30 28 

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33 31 

34 32 

35 33 

36 34 

37 35 

38 36 

39 37 

40 38 

41 39 

42 40 (Ncนิดหน่อย) 

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44 42 

45 43 

46 44 

47 45 

48 46 

49 47 

50 48 

51 49 (Nc+) 

52 50 (Nc+) 

53 51 

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55 53 

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70 68 