(3Yde GdNWGHI (B: (3WQjbI JYde GdNWGHI eY PcQ CTgQ NWH GdJGQjN (B/ s - (3GdTGhj, eMeO SejQs ((3OeTb (B:s (3OGQ GdYUeGA,s, 2006)
Keywords: (3GdNWGHgs; (3GdhYX hGdGQTGOs