(3ahGJ GdhajGJ (B: s (3hGdPjd YdjgG (B/ s - (3eMeO Hf TGcQ GdcJHjs; (3GMSGf YHGSs ((3HjQhJ (B:s (3OGQ UGOQ ,s, 1974)
Keywords: (3JGQjNs; (3GdJQGLes; (3GdGYjGfs