(3GdbHWjI GdYQHjI (B: s (3OQGSI ebGQfI Hjf dZJjf bQjHJjf TbjbJjf (B/ s - (3Ydi agei NTjes ((3GdbGgQI (B: s (3eQcR GdMVGQI GdYQHjI ddGYdGe hGdfTQ , s, 2003)
Keywords: (3GddZI GdbHWjIs; (3GddZI GdeUQjI GdbOjeIs