(3GdHHdjhZQGajG GdTGedI ddWahdI aj QHY bQf MJi (B1981 / s - (3YhOg, CHh GdaJhM MGeOs ((3GdbGgQg (B:s (3GdgjFI GdeUQjI GdYGeI ddcJGH,s, 1986)
Keywords: (3GdcJHs; (3GdQSGFd GdLGeYjIs