(3UdGM GdOjf GdGjhHj (B: s (3OQGSGJ aj GdJGQjN GdGSdGej (B/ s - (3LH , GdSjQ gGedJhf C (B. (3Q s; (3GjHT , jhSa s ((3HjQhJ (B: s (3GdeDSSI GdYQHjI ddOQGSGJ hGdfTQ , s, 1973)
Keywords: (3GdJGQjN GdESdGej s