(3GdGOH GdbUUj aj GdYQGb efP GdMQH GdYGdejI GdKGfjI (B:(3GdJLGgGJg GdacQjI hbjeI GdafjI (B/s - (3GMeO , YHO GdGdgs ((3GdYQGb , HZOGO (B:s (3OGQ GdMQjI ddWHGYI ,s, 1977)
Keywords: (3GdGOH GdYQHj (B- (3GdbUU (B- (3GdYQGb s