(3GdfbhO GdUQajI(B.s (3hGdSjGSGJ GdfbOjI (B/2s - (3YHOGdfeje eMeO eHGQcs ((3GdbGgQI (B:s (3GdOGQ GdLGeYjI(B,s, 1985)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdfbhO hGdHfhcs