(3GdHOGjI hGdfgGjI (B/s - (3GHf cKjQ, ESeGYjd Hf YeQ Hf cKjQ,s 701-774 (3gLQjs ((3HjQhJ (B:s (3ecJHI GdeYGQa,s, 1977)
Keywords: (3GdJGQjN GdESdGejs; (3GdHdGO GdESdGejIs -- (3JGQjNs