(3ehGba LRGFQjI (B/s - (3eMeO, ejdjs ((3GdLRGFQ (B:s (3GdeDSSI GdhWfjI ddcJGH ,s, 1984)
Keywords: (3eYQcI GdLRGFQ s; (3hKGFb GdeDJeQ GdNGeSs; (3GdeZQH GdYQHj s