(3GdeJLQ GdQGHM aj KhGH GdYed GdUGdM (B/ s - (3GdOejGWj, TQa GdOjfs; (3MLGL, YHO Gddgs ((3GdbGgQg (B:s (3ecJHI GdJQGK GdESdGej,s, 1988)
Keywords: (3GdESdGes; (3GdMOjK GdTQjas