(3GfWhdhLjG GddZI YfO gGjOLQ (B/ s - (3UaGA YHO GdSdGe LYaQs ((3GdbGgQI (B: s (3OGQ GdhaGA dOfjG GdWHGYI hGdfTQ , s, 2001)
Keywords: (3GdadSaI GdZQHjIs; (3gGjOLQs; (3bUjOI GdcdeIs