(3GdHQGeL GdKbGajI hGdGYdGe GdGPGYi (B/ s - (3SgjQ LGOs ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1997)
Keywords: (3GdGYdGes; (3hSGFd GdGYdGes; (3HQGeL GdGPGYIs; (3GdGJUGd (B- (3Yde GLJeGYs; (3GdGfJGL GdGPGYis