(3GdGMJdGd GdQheGfj dHdGO GdeZQH (B/s - (3eMeO, GdHTjQ TfjJjs ((3GdLRGFQ (B:s (3GdeDSSI GdhWfjI ddcJGH ,s, 1985)
Keywords: (3GdOhdI GdbQWGLjI s; (3HdGO GdeZQH s; (3SbhW ehQjWGfjGs; (3SjGSI GdQhefI s