(3hUa h JQcjH fHGJGJ GdeMGUjd h GdMTGFT (B/s - (3LGO , YHO GdeLjO eMeO (B.s ((3GdCScfOQjI (B:s (3OGQ GdeWHhYGJ GdLOjOI,s, 1976)
(3jMJhi Ydi cTGa (B.s
1
Keywords: (3GdeMGUjd GdRQGYjI(B.s; (3GdMTGFT(B.s