(3GdHjGf (B: s (3eLdI GOHjI KbGajI TgQjI eMceI Y(B339 ((3GcJhHQ(B-1998)s ((3GdchjJ (B: s (3QGHWI GdGOHGA , s, 1999)
Keywords: (3GdOhQjGJs; (3GdGOH GdYQHi (B- (3JGQjN hfbOs; (3GdGOH (B- (3OhQjGJs