(3GdOdGFd GdUMjI dESJYeGd GdeNdaGJ GdSGFdI aj GdRQGYI h JQHjI GdCMjGA GdeGFjI (B/ s ((3Lfja (B:s (3efXeI GdUMI GdYGdejI,s, 1989)
Keywords: (3GdaVdGJs; (3GdUfGYGJs; (3GdaVdGJ GdRQGYjIs