(3bUU GdbQGf (B:s (3GMSf GdbUU (B/s - (3cTc , YHOGdMejOs ((3GdbGgQI (B[(3eUQ(B]:s (3ecJHI GdJQGK GdESdGej ,s, 1977)
Keywords: (3bUU GdbQGfs