(3GdGMdGa hGdJcJdGJ aj GdSjGSI GdYGdejI (B/ s - (3TcQj , eMeO YRjR s ((3GdchjJ (B: s (3GdeLdS GdhWfj ddKbGaI hGdafhf hGdGOGH , s, 1978)
Keywords: (3GdJcJdGJ GdSjGSjI s