(3GdYPQGA hGdQH (B:s (3bQGAI ai GdNWGH GdSjGSi GdGeQjci (B/s - (3SgGe GdbMWGfi s ((3HjQhJ (B:s (3GdeDSSI GdYQHjI ddOQGSGJ hGdfTQ,s, 2007)
Keywords: (3GdJGQjN GdGeQjci s; (3GdghjI GdGeQjcjI s