Page 46 - การใช้ฐานข้อมูลวารสารอิเล็กทรอนิกส์ ScienceDirect
P. 46
U M,IA,~1;!11 ~lt!l,!,/UbWLU M.Ll:-L IAIAULl1 ~1 11.l,!,fl.,LHlf.LftLQ ~Lf.M.1tWfl.,LH,LU@M.1
rop ~ op (f;[n (f, J? (6 J?' Jr'
' ' '
} @~1 t, ~rm l,!,l:-@i l,!,11:-@i 1L ufu rm ftL fhu l, M.t, p 9 J:.L l1 L@ ~ ~lt!fl, J:.L u f fl,~~ rt L ~ }@ ~1t, ~ rt@l,!, r:-@i l,!, 1 rt~ 1,tl, b
6
6
.tLU r:-@~fhu 11.r,puiu~u ,tt 11.~u Lrt,tt uw~u ,ttfl.,f UL~ l;!rt@Q, M.LiM.~fl.~ .tLU !~Ltt ~11. nrtwnr.r, 1 L~~],
,.
;@~1t,~rt@l,!,f1L[l,@~l,!,1fl,fl,~.tt, ~ lrtll l,!,rt~1 Ub~Lfl,LQ U tmb l,!,fl,@f, l,!, ,ti, urn !}@f.lAU ~1~ f.LQ J:,Lt, ~ft@k19M.L K
6
6
6
fl.f U@fl.~rtQ@U,tt 11.~1 ~.tr, 11. M.,!;J 11.@~u1~~11.n@M.Q1Bk19~[hu 11.t-p 9 r.Lt1 L@/L R.u~u ,tt
LR.UJJUM.LWl:-QJ:.LUl:-@~rtLWrtf1f.Ll1L@ ~M.1!.@~111.@
1? ltl I (6 Pp p /I b
lf.1rtlll,!,ftM1.tLUl:-@~ftlt,l,!,M.~1~.trrM.t,1Uf1 M.~1~.trtULWf.Ll1L@LWl:-QQUM.@.tlAUl;!1@f.LQf.Lll;!rt@fl.M.li
,:, 7 If, ,:, I. If, ,:, I· ,. , ,. .,. ,:, .,. If,
.tLU~fl.t-lrr fl.f IT ~1;!11 L M.~M,~ftQ@UU 1 !:.LUI:-@ ~rtLWftLR.UJJU M.Llfl.M.f.LUl:-@~ftlt, l,!, M.L ~
- , ..... ,.. /ti (6 b /f, p g;. f'I) I /6 "
L~U 1:-QL!-lffillfl.M.9 f.Ll1L@ ~11~1~1;!1:-Lr@M.~fl,~f.LUL ri~11.mLQU B1~ftL ~1;!11 ~,!;JL~r:-@il,!,1ffe1, !.LUM. b Ll;!U
M,l,!,fl,1' . .tLUM.1 Rlmr:-@LR,LIJ,({,1 f.LULufun. f.LUl:-@~rtLWftL~l:-.t~m ~j M,l,!,fl,QIA,l;!rt@n. rt@,({,1Ll,!, M,l,!,Ll,!,J(,1
(6 ~ b ltl (6b L,,i' (6 I lrtt6ln (6 lr'f' (6 r' 0 "0(6b
.t LUL ufun. M.@Jb fl.JbU Lf1 r:-n 11. l,!, fl.Q !.LU fl. fl. ~f. l;!ft@fl, M.Li rnn. M. l,!, fl.Q f. LU l,!, M. l,!,IA 1fl.L .t IA. rtt MrtM rn W 1 ~ I;! 11
I,; (61t1 1(6J;:, /f, (fjJ;:, t,, 1:\/lb r'
.t@~1t,Mrt@l,!,r:-@W1rtrt1 M.~1~!.rlM.1 f1f.Ll1L@LWULrtl;!ft@fl,M.LiJb1 J:.LUM.1 L!-lffirlfl.MLR.UJJUM.
;, ,;;,, p- Pl ln p , .. b ;, 1 /6 /6 6 6 h g:,, 1t1
l;),ft@fl,~1;!!-llM.U~.tLUM.1 lf.lrtlt,l,!,
If, ,. b ,:,
~1;!11 f.LUl:-@~~L,({,~Lfl.LQrtbl,!,fl.@Wl;!ft@k'9 M.~1~!.fl,M. 1,9 f.Ll1L@L~U 1:-Q l1 l, @M.1:-~rtlt,l,!,~LR.U~U ,t1, M.lf
M.fl.ULrtUt,~~Q!il,LIA J!t?Ul-;} l:-LIAM.l,!,fl.Qf.LUl;!t-:11:-Q.tLU f.tA,~1;!11lf.1~lf. Ut,~~Q l;!ft@fl,UIA.M.fl. M.rtM.f.LU
f' (60 (61? IP p "g:.,,1t1pt,,
lf.1~t,f,~1;!1mll:-l;!ft@fl,M,l,!,fl,Qf.LU!Lt, r:-rt1ur. t'Z ~@l;),~~j M,l,!,fl,1'.f,LU UM.IA L,({,t,l,!,LU/~ml,!,Ull1~1 l;),ft@fl,
p I /f, /6 Ji::' J:l'b 1 (6 Lt (6 ~ ltl F' 'C;7 (6 lrt (6
M.~fl.~Uf.LftLQf.LU l;),ft@k19!:-@fl,f1£!QM.~ftlt,l,!,M.~1~.tr, M. l, LR.U~U ,tl,L~U 1:-Q l1 b @Ml:-~rtLt,l,!,~9!.Ll1L@L~fl.M
QU M.@f.lA.Ul;!j@f.LQf.lt, l;),ft@fl,M.LKJb 1 f.LUl11 @M.1:-Mrtlt, l,!,fl,~~f, fl.f11A.1fl.f1 r,n. mm
/' 'O p b (6 (fj 6 6 l? 1t1 P J:;;>) .., P'
.lWN,@f.LtUm@.tUtt.lt
? b J:t t;,,
68
