(3eYGde GdKbGaI GdESdGejI (B/s - (3YKeGf, YHO GdcQje(B.s ((3GdQjGV (B:s (3eDSSI GdCfhGQ ddfTQ hGdJhRjY ,s, 1979)
Keywords: (3GdKbGaI GdESdGejIs