(3adSaI GdbGfhf hGdSjGSI (B/ s - (3YHOGdQMef HOhis ((3GdchjJ(B;s (3hcGdI GdeWHhYGJ(B:s, 1979)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3adSaI GdbGfhfs