(3SjchdhLjI GdPGcQI (B( (3YGde GdeYQaI(B290 )s ((3GdchjJ (B: s (3GdeLdS GdhWfi ddKbGaI hGdafhf hGdGOGH , s, 2003)
Keywords: (3GdJYdes; (3GdPGcQIs; (3GdPcGAs; (3JbhjI GdPGcQIs; (3GdeNs