Tham khảo Jaap_Stam

  1. ↑ Barnes, Justyn; Bostock, Adam; Butler, Cliff; Ferguson, Jim; Meek, David; Mitten, Andy; Pilger, Sam; Taylor, Frank OBE; Tyrrell, Tom (2001). The Official Manchester United Illustrated Encyclopedia. London: Manchester United Books. tr. 116. ISBN 0-233-99964-7. 
  2. ↑ Siêu cúp UEFA, uefa.com