Catatan Ron-Robert_Zieler

  1. ↑ "2014 FIFA World Cup Brazil: List of Players" (PDF). FIFA. 11 June 2014. m/s. 16. Dicapai 11 June 2014. 
  2. ↑ Rollin, Glenda; Rollin, Jack, para penyunting (2009). Sky Sports Football Yearbook 2009–2010. Headline. m/s. 502. ISBN 978-0-7553-1948-0. 
  3. ↑ Hugman, Barry J. (2009). The PFA Footballers Who's Who 2009–10. Edinburgh: Mainstream Publishing. m/s. 452. ISBN 978-1-84596-474-0.