(3GdehShYI GdTGedI ai TQM GdJTQjYGJ GdLfGFjI GdNGUI (B:s n - (3eYhV YHO GdJhGH s ((3GdbGgQI (B:s (3GdeQcR Gdbhei ddEUOGQGJ GdbGfhfjI,s, 2002)
(3EgOGA ef MSf Ydi s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdJTQjYGJ GdLfGFjI GdNGUI s; (3GdbGfhf GdLfGFi s