(3JGQjN GQHd(B:s (3GdeSei fHGgI GdHdO GdNGed Hef hQOg ef GdGeGKd (B/s - (3GHf GdeSJhaj , TQa GdOjf GHj GdHQcGJ GdeHGQc Hf GMeO GddNej GdGQHdj s; (3GdUbGQ ,SGej Hf GdSjO NeGS s ((3HZOGO(B:s (3OGQ GdQTjO ,s, 1980)
Keywords: (3GQHjd (B-(3JGQjNs