- barcamania.com ronald-kuman-udar
- fanday.net player/78673-ronald-kuman
- footballclassic.ru igroki/ronald-kuman/
- futbin.com Players Ronald Koeman Base Icon
- isport.ua tag/Рональд Куман
- FB.ru article/231058/ronald-kuman-biografiya-foto
- commons.wikimedia.org wiki/Category:Ronald_Koeman
- championat.com football/news-5636062-ronald-kuman…