(3GdeOQSI GdLhgQjI(B(22 (3ObjbI(B) / s - (3eMeO Ndjd fUQ (B((3eUhQ(B)s; (3YHOGddWja YeQs ([S.N] : (3GdeQcR Gdbhei ddSjfeG , s, 1983)
Keywords: (3TQGFW ajOjhs; (3GadGe JSLjdjIs