(3GdGYdGe h GdHjFI (B/s ((3GdbGgQI (B:s (3OGQ GdaLQ ddfTQ h GdJhRjY ,s, 2012)
Keywords: (3GdGYdGe GdHjFjs; (3GdHjFI s; (3GdGYdGe s