- footballdatabase.eu en/player/details/4774-ruud-…Ruud Gullit's player data and stats...
- flashscorekz.com player/gullit-ruud/2JfBBRXk/
- super.kg article/show/381
- photosota.club 6177-ruud-gullit-futbolist-59-…
- sports.ru football/person/ruud-gullit/
- ewikikk.top wiki/Ruud_Gullit
- http://ChtoOznachaet.ru slovari/ruud-gullit
- ACMilanFan.ru season/squad/ruud_gullit/
- stuki-druki.com authors/gullit-ruud.php
- mann-ivanov-ferber.ru authors/ruud-gullit/