(3GdYdGbI GdYeGfjI (B- (3GdHQjWGfjI (B/s - (3GHh jGSjf ,SejQ eMeO Ydj s ((3GdHUQI (B:s (3LGeYI GdHUQI ,s, 1981)
Keywords: (3YeGf (B-(3JGQjN s