(3OQhS ai GdbVGA GdEOGQi (B/s - (3jMji GdLeds ((3LGeYI GdbGgQI (B:s (3eWHYI LGeYI GdbGgQI hGdcJGH GdLGeYj (B,s, 1981)
(3ChdG OYhi GdEdZGA (B- (3KGfjG OYhi GdJYhjV s
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdEOGQi s; (3GdbVGA GdEOGQj hhXGFags