(3GdbOS h WQhMGJ GdJShjI GdSjGSjI (B/ s - (3YhGO, eMehOs; (3ZfGje, RgjQs ((3YeGf (B:s (3efThQGJ GddLfI GdedcjI dTDhf GdbOS,s, 2001)
Keywords: (3GdbOSs; (3JGQjN adSWjfs; (3GdfRGY GdYQHj GdESQFjdjs