(3YGde GdacQ (B((3eL(B30 \(3Y(B2 \ 2001 : s (3eLdI OhQjI eMceI JUOQ GQHY eQGJ ai GdSfIs ((3GdchjJ (B: s (3GdeLdS GdhWfi ddKbGaI hGdafhf hGdGOGH , s, 2001)
Keywords: (3GdTYQ GdYQHis; (3GdTYQ GdeZQHis; (3GdMOGKIs; (3GdGOH GdYQHi (B- (3GdLRGFQs; (3GdGOH GdYQHi (B- (3JGQjN hfbOs; (3GdGOH GdLRGFQis; (3GdTYQ GdYQHi (B- (3GdeZQHs; (3GdGOH GdYQHi (B- (3fbO (B- (3JGQjN hfbOs; (3GdTYQ GdSQOis; (3GdTYQ GdYQHi (B- (3GdSYhOjIs