(3GdbGVj YjGV hLghOg aj Ydej GdMOjK QhGjI hOQGSI(B/s - (3GdJQGHj,GdHTjQ Ydj MeOs ((3HjQhJ(B[(3dHfGf(B]:s (3OGQ GHf MRe ddWHGYI hGdfTQ hGdJhRjY,s, 1997)
Keywords: (3GdMOjKs -- (3QhGjIs