(3GddajGKGf (B: s (3GdCUhd GdWHjYjI hGdSjGSjI dSdWI GdOhdI (B/ s ((3CHhXHj (B: s (3gjFI CHhXHj ddKbGaI hGdJQGK (B((3cdeI(B) (3hOGQ GdaGQGHj , s, 2011)
Keywords: (3GdYdhe GdSjGSjI hGdYdGbGJ GdOhdjIs