(3GdbQGQGJ GdeJYdbI HGdESJKeGQ h CSGdjH GdJMdjd eJYOO GdCHYGO (B/ s - (3YHjOGJ, eGRf WdGds ((3YeGf (B:s (3TQcI GdeWHYI GdEbJUGOjI,s, 1985)
Keywords: (3GdESJKeGQGJs