(3GdgfOSI GdGdcJQhfjI ddGJUGdGJ GdSdcjI hGddGSdcjI (B/s - (3GdNWGQ , MSjf s; (3TjcGcj , ThLj s ((3Whcjh (B:s (3GdeDSSI GdYGdejI ddJCdja hGdfTQ ,s, 1978)
Keywords: (3GdgfOSI GdGdcJQhfjI s