(3YRd hMeGjI GdefTCJ GdNQSGfjI WHbG dGMOK ddehGUaGJ GdYGdejI (B/ s - (3SYjO Ydi NWGH Ydis ((3GdbGgQI (B: s (3OGQ GdcJH GdYdejI ddfTQ hGdJhRjY , s, 2001)
Keywords: (3GdefTCJ GdNQSGfjIs; (3GdefTCJ GdNQSGfjI (B- (3ehGUaGJ GdGeGfs; (3GdefTCJ GdNQSGfjI (B- (3YbhO hehGUaGJs; (3GdHMjQGJ GdUfGYjIs