(3OQGSGJ aj GdUMGaI GdeUQjI hGdYQHjIs (3bVGjG eYGUQI (B/s - (3YHO GdQMef, YhGWas ([(3GdbGgQI(B] :s (3OGQ GdcJH GdbhejI,s, 1989)
Keywords: (3GdUMGaIs -- (3eUQs; (3GdUMGaIs -- (3GdHdGO GdYQHjIs