(3fRgI GdNGWQ hHgLI GdfGXQ (B/ s - (3TQa GdOjf ehSi Hf jhSa GdGfUGQis; (3YOfGf eMeO GHQGgje s; (3YOfGf OQhjTs ((3OeTb (B:s (3efThQGJ hRGQI GdKbGaI , s, 1991)
Keywords: (3OeTbs; (3GdGeHQGWhQjI GdYKeGfjIs; (3GdbVGIs