(3GdeZGeQhf GdKdGKI aj dZR GdSLjf GdHQjA (B/ s - (3hGdj, YUeJs; (3YHO GdHGQj, YaGas ((3GdbGgQg (B:s (3OGQ GdeYGQa,s, 1984)
Keywords: (3GdCOH GdYQHjs; (3GdbUU GdYQHjgs; (3COH GdGWaGds