(3GdeMGaXI Ydi GdCfhKI h GdLeGd (B: s 44 (3fUMjI dLeGd GdTYQ h GdHTQI (B/ s - (3SMhQ, SgjQs ((3YeGf (B:s (3OGQ GdGSQGA,s, 2001)
Keywords: (3eSJMVQGJ GdTYQs; (3GdLdOs; (3GdecjGLs