(3CjGe dgG JGQjN (B/ s - (3HgGA GdOjf, CMeOs ((3GdbGgQI (B:s (3OGQ GdTQhb,s, 1991)
Keywords: (3GdJGQjN GdSjGSjs; (3GdKhQGJs; (3JGQjN eUQs