(3GdGSJTaGA HGdbQBf GdcQje hGdSfI GdfHhjIs - (3GMeO GdUHGMj YhV Gddgs ((3HjQhJ(B/(3dHfGfs (3efThQGJ GdecJHI GdYUQjIs, 1980)
Keywords: (3Gdabg hGdCMcGe GdTQYjIGdabg hGdCMcGe GdTQYjIs