(3CYdGe GdOQGSGJ GdbQBfjI ai NeSI YTQ bQfG (B/s - (3eUWai GdUGhi GdMhjfi s ((3GdEScfOQjI (B:s (3efTCI GdeYGQa,s, 1982)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3OQGSGJ bQGfjI(B-(3GYdGes; (3GdTQjYI GdESdGejIs