Page 33 - การใช้ฐานข้อมูลวารสารอิเล็กทรอนิกส์ ScienceDirect
P. 33
(lJVlfl'lllJ'fl~ 50 lJlVI) ij~7m i1v~l'fffl (x = 2.95 )
' '
.
"
'Wfl (x = 4.10) 'ff1Jflt.J'Ut1lJ'fl tfl\91'fltlfl 24 'b'1
( x = 4.02) u1~tflt.J'J1mmnmrn11rn\P11JV1'ff~CJft1
1 m
!ii
!ii
"'
1'J !ii
d
.:-
d
.,
.,
.I
,,. .:- ..r
_
'U
'U
'U
q
l1t.J 'fflJfJ'Utl~~tllJ'flij~7m ~ f.l'ff ~'fffl (x = 4.12 ) 'Jtl~'fl~lJl~tl'ffllJl'JflfflJ~t.J~tllJ'fl i¢1'1lflflW~/fllf11'b'l ~
'W~'WtJ h iu'J~fllJlJlfl 11 U'J~tflt.J 1~fllJU7t.Jfl'f!N 4 u1~tflt.J V1'111w1,11nmm'f!fJ V11111u'J~tflt.Jm1:1.J
QI
Q.I
&
Id
d.c:t.
d
'd
"
irlti'W'1l'JWl!~t.JU'J~!~t.J'WlJ17ijm7lJ
lflf.lfll'W'J1lJtJUit.J'J~ilJlJlfl (x = 3.57 )
ijfl111J'W~'Wtl h
\911 'J 7~ VI 4 'W lJ 17t.J flff fl lll/tll '1 l'J fJVI 'b'lJ 1 fll'JJ lt.J 'IJ tJ l_!'fl 11'J 'ffl'Jtl!'fl flVl'J tJ t.J fl ff ScienceDirect
-Ct.
1
o'di j/
'J/
ti
et. d
d
Q.I ~
~
lJlfl
332
.53
3.57
'j 1lJ
•
'fflJ fl
~
"
"
.88
3.06
u1u nm~
14 I fll'J'1f1VllfllJtlfll'J 'b'il'lt.J'UtllJ'fl'lltlrntJ~
296
Q.I
O
·~
!ii
i !ii
!ii
~
"
Ult.Jfl'fll~
295
.87
i 'b'il'lt.J'UtllJ'fl'Utl~lttl~'fflJfl
13 I fll'j'fftJ'Ufll'J
3.07
!ii
!ii
!ii
.
308
U lt.J fl'fll~
2.95
.90
12 I 'jlfll!tlfl'fflrn1Jrn\P11JVl'ff~9ft)
Q.I
d d~J'
"
11 I 'JU1t1J1JN'flfll'Jffrni'im1m~'fflJ
325
lJlfl
.70
3.76
X
m.l'flm1:1.J
(N)
S.D
'Utlfl1llJ
!ii
~TUTU
'J ~ fl lJ m 11J 'W -rvrn ,1
.,
"'1
i
26