(3eONd aj OQGSI GdCOH GdeZQHj GdbOje (B/s - (3OLh , GdYQHj s ((3GdLRGFQ (B:s (3OjhGf GdeWHhYGJ GdLGeYjI ,s, 1988)
Keywords: (3GdeZQHj s; (3OQGSI Gs; (3dCOH s; (3eONd s