(3LQGFe GdeNOQGJ aj GdJTQjY GdeUQj hGdCMcGe GdeJUdI HgG (B/s - (3eMeO Qajb GdHSWhjSj(B.s ((3GdbGgQI (B:s (3GdeQcR Gdbhej ddOQGSGJ GdbVGFjI,s, 1989)
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
Keywords: (3GdJTQjYGJ GdeJYdbI HGdeNOQGJ(B.s