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WSES NSCIONS o HEICS Hoh S alr a o al rq a a o. h rao ha a rq ra a a o rr o ar work wh o ar alr. 4 Colo or r wh ar raral h rlal aha ol roo a o hrarhal owr l ol o rao ao h ar a h rla rlal aal alo ror. h al hq or ara a qo ha h raoal o. h a ha Erla ro or raoal ha oal o or l aroao o h ar a allao alo rlal a. Ur o al oo w al ohr oal ro a l aroao o h l a h r rl a lkl oa. h ol o h ar a o ol al o rao ao alo or ohr alo aalal. 5 kowl h work arall or h Q a al Er or azho Jaoo Ur Q-6-9. h ahor alo rall akowl h hll o a o o h rwr whh ha ro h rao. r: J. Cao Elr alwa rao Sl S Cha alwa r 98. Q. a J. H rao owr Sl S al Sohw Jaoo Ur r 7. aho Chaa ar o a Ha Barz lal a Iro o ar owr Io oor W Ilao roo S U r al WSES ra. o Cr a S Vol.7 No.4 8.9. 4 H. a. al a D o S lal S r. 5 arla o a Da or o lll roah o lal Ozao Col S WSES ra. o S Vol.7 No.7 8.8-84. 6 W. lal D o ha Qha Ur r 998. 7 a ahaa a V lal a rora al o Nw al olra Irrlar Nwork WSES ra. o Cor arh Vol. No.5 8.-. 8 Hoh S a Yo Zha No- arko aral ol al o wo olar Ch Joral o l roal a Sa Vol. 4 No. 8.66-74. 9 Hoh S a Qzha aral ol al o rl olar a Irlok S alwa Sal : ro o 5 Ch Corol a Do Cor Har Cha 5. -5. J. Cao a. Ch lal aha Iroo Hh Eao r 6. H. Do J. a J. X S o No- arko ol o wo-or a S Joral o Cha alwa So Vol.6 No.6. 5-8. J. o ar al Iroo Soh Cha Ur r 5. ISSN: 9-769 656 I Vol 7 Nor 8