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ol el6J d=u}Bg -H-EFrll4 ql=ol+ +=-+. +, ol ,i9 dEzl.e9 Frl14 E4ql =4+trI. q€ ^l*Eg ol ag B€Lrd6}4r ^J46Iq +*r+ aol ,J6I7IE 6}4:'ol 414 t'ltzl gtflgqlE E+6Ir, ttzl ..llz} 2s^l "l6lel= oJ+E, ..ll €.H.trI Bg .9- ;L9 zl$al]o[ +r+." _E_e5]^]=g "]+ +++ dtr +ql^l z]l"JE€. +E^la += H "Jg- *l 914. r?l+, EEflrI= qd6'l d+el +Cql =4Elq -H_B#g tCaI"I"J +trI. _ H-e€+e+= E?-l trl= €7=E ^Iag ql+6ll € + 1l= zl"JilE Ei6l.tlelj1 6l H+. "l elo-J €+= ^Iag el+6| += E"JEE H9l= trl+flEu{, :t- e4- ,l* +lt6}ill +E}lttrl. Kephartq Tiffin(ls50)e 11zl]9 t}ol;J +B d E"il r.ll6ll ^14:.4 r+ tlgrl6lla9 +alql ++ €+-= 61fltrI. E=^l qg z*a- 91= *tr-z|59 nzll9 +g + roztl9 +Bql^] 4€- tB zll;ilE 4r}.-lll 91tr1. + zlAl444 s.Eql^-] ^l q4 t B4laI4 Ell6ll ole+ +^|oJ sTzI d^lgB.Erll, z ar+= [zB rz-o]41 4l^1fltr]. $ ,,, 50 r|:19 HIE ral 12-6 zlAl=4 =gfl=el ^lei4 ^lrHJEelel lJzl + y*g i..tzl zl4+q+ ^IaE +alcg eE6IH+. +++ EIa+ql ++qd a- ?zI4 EiIE zJz-|ali- ts4"1 tCz}9zls 619+. :t_ ar+, zl4;qel ilolT} ^lae+ *flol 9l*.trI. Barrett4 Thornton(1968)g -s9 4'J Sdtlolql^l Y*g ;.|-r.E oJgA ^I*g €41 +d ^J+ql^]E y*e r|_r.E "Jsa+= ^ldg Ea6Iq+. +ad rBg + *= ^I*"il7il^l r.|;u$ol 4 al +EI*q. Mihal4 Barrett(1926)= ols+ +^16} e4= -Eril6IH=Ell, -H-F SdzIE9 ol*z}tst -E-= CH=- zlalalell 6I= HlEql g++ tdzlES +e+ AHq tr^]E"Jg Cq6lq il4++= ag gda}Htrl. Williams Ogzt)= 3ilg4 +g "JiI z.)zlz,l.tlz| r.|r= el adl =trI= ag gdt}HtrI. E+Ar+, ,<[r.€l?€- 4=- H"JE-4I- **ol 9f9tq. zl'JoJ ^14+= z.iEJ-il gg- rl4f i: 323