Page 19 - ebook.msu.ac.th
P. 19

;0ก8C=ก"#6Q"%!6(%6'S(*"*60)!'(  “!"#$#"%&'()&*"!"#+"&  (./0/+01#2"))”


                       j151)%8CDB7H41[fa019.B81DB1CfD5. Y+6ibH%B1CfD5.DDกB@o1 E `.& +)%1  [f


                            <"+B T HI(&J;M'S6U"6%ก?K@>ก0/!"#$#"G;=%&'()&*"!"#+"&:6(1?$ @$0กDb+/6b21. 9
                                                                                              ?
                                 ?K
                                                               H
                                                             ?
              i70@$0/A(.8A$B4CD%45.8.$&.4Y+68)%BG@ B:CgDj5ZD.1BG?.ja7)กp#0Bq:.0GD%84F+GHD6 7)กp#0
                                                              X?
                        ,
                      )
                              '
                                                                              X?
               )
                                                                                                 ?
                                                     ,
              A/Dกp$ 2[gb)12kกj18.$A$. 7)กp#0ก.$@$/$$Ai70ก.$lD+i@7GD%ZB$6bB$6% i70B:CgDj52$.b
                                                                                [
                  )
                                                                                    [
              G?D4X7@$0/)A,(.8A$'2[gBก[g6/G?D%ก)bB4CD%45.8.$&.4A)f%iAHB$,g4A)f%a14.lk%Ba?.B4CD%&18F+2?.6:D8)%BG@
                                 ?K
                            <"+B V ก"#F#A>##$G;=W(1GF;!"#$#"%&'()&*"!"#+"& @$0กDb+?/6`.:A?1qb)b
              84F+GHD6 a9.1/1 || b.1i:1ก rkg% = b.1i:1ก B2H.ก)b " 51.84F+GHD6 Y+6a0i8+%n/?51?.+?.1r?.6
                                                                    ?
                                                                                 \
                                                                               ?
                                                                                         ,
                                                                                    )
              GD%51)%8CD 8H/1&9.@$,/$$Ai70&9.DH.1a0i8+%n/?51?.l)+4. B:CgDj5ZD.1n+B51DกG$/_[ก.$BG[61ibb
                                                                        ?
                                                                          H
                                                                         X?
              Yb$.#
                                                                                              )
                                                   'S
                                           J
                                 ?K
                            <"+B X ก"#N01#FG//%6(*"!"#$#"%&'()&*"!"#+"& VY ./0/ B@o1ก.$a+$X@ibb
              B1CfD5.j54Hj^?`.p.@taaFb)1 B:CgDj5?%H.6j1ก.$DH.18.$A$.iAH70qb)b

                       2)f%1[f7)กp#0A)/D)กp$2[g@$.กsj1b219.ก)bA)/D)กp$j184F+GHD6 7)กp#0D.aiAกA.%ก)1A.4
                                                                                              H
                                                                                    X?
              7.64CDGD%ZX?BG[61iAH70&1 GDj5?ZX?81ja(kกp.j1$.670BD[6+B:CgDAHD6D+D%&'&/.4$Bก[g6/ก)bDกp$(.8A$ '
                                                                                            )
              i70@$0/)A,(.8A$'AHDn@



                                       F#=>0$A%&'()&*"!"#+"&41@!0)%HF

                                                                   X
                                                                                     \
                                                                                 ?
                                            )f
                     B4CD%45.8.$&.4B4CgDi$กA%Gkf1D6XHj1&/.4@ก&$D%+i7GD%Ba?.B4CD%$D6BD+ &CD :$0G)A,6/%(.
                   =
                )
              (a1)   rkg%j1:,_[lCD1.:$0:,:)d18)A6.  Ba.B4CD%45.8.$&.4a0AD%:.ก$4ก.$B4CD%^)f1Zj5]2[gB$6ก/.
                                                                                          X?
                                                                                                     H
                                                                      ?
                                                                                                  [
                                                  ?
                                f9
                                           '
                                                                                              H
                                                                                   ,
              D.]. I ZX?^H/6D.]. I i70ก$4ก.$B4CD%n@$H/4:,_[2[gB4CD%$D6BD+ $/4ก)b:$0G)A6/%(. @{70 " &$% &CD
                                                                       H
                                                                    \
                                                                                                  )f
                                                                ?
                  )
                                                              H
              j1/1A$p (B+D1 <) i70/18.$2 (B+D1 =h) B:$.0/.B4CD%45.8.$&.411B@o1B4CD%A%j54H 6)%n4H
                                                                                 )f
                                                C
                      F
                                      )
                                                                                            )f
                          C
                                                                                  k
                                       ,
              &F?1B&6ก)b_$$4B164@s,b)A a1ก$02)g%lk%@{ :.(. "I=" B4CD%45.8.$&.4a%i6กA/DDกa.กB4CD%
                              [
                                                                                         )
              $?D6BD\+Gkf1ก)bก$F%B2:u Y+6A$%
                                                                        )
                                                                [
                                                                                '
                                                                          ,
                     j151%8CD y%&'():6<"+(?!"6z rkg%กD%/$$#&+i70@$0/A(.8A$ ก$4(,7@.ก$$/b$/4n/?
                           )
                                                                F
                    F
                           ?
                                                                             ,
                                                                         ,
              i70D1].Aj5:,4:'j1%.1:$0$.^2.1B:7,%(: :$06.D+$_.1[ (aA$ aAA06Y8_$) # ‹.@18l.1

              =    :$0G)A,6/%(. (a)12$') B@o157.1:$0G)A,6/%(. (21A)
                                                '

                                                          =>
                                             !"#$#"%&'()&*"!"#+"& (./0/+01#2"))
   14   15   16   17   18   19   20   21   22   23   24