(3GdGOH GdYQHi ai GdGfOdS (B/ s - (3YHOGdYRjR YJjbs ((3HjQhJ (B: s (3OGQ GdfgVI GdYQHjI ddWHGYI hGdfTQ , s, 1976)
Keywords: (3GdGOH GdYQHis; (3GdGOH GdGfOdSis; (3GdehTMGJ GdGfOdSjIs