(3GdJYdje aj adSWjf (B/ s - (3GdbWTGf, YHO Gddg YHO GdSdGes ((3YeGf (B:s (3OGQ GdcQed , UGeO,s, 1988)
Keywords: (3GdJQHjIs; (3adSWjfs; (3JGQjN GdJQHjIs