- dic.academic.ru dic.nsf/ruwiki/1127443
- aiscore.com ru/player-ronaldo-silva/…Bulunamadı: мораис
- smotrisport.tv lib/player/football/59229-ronaldo-…Bulunamadı: мораис
- en.wikipedia.org Cristiano da Silva
- football-fun-live.com player/ronaldo-da-silva-…Bulunamadı: мораис