İngilizceden çevrildi
- vashdosug.ru msk/person/harol-d-viler/
- instagram.com haraldjzwart/
- twitter.com galemharoldiii
- vinlandsaga.fandom.com wiki/Harald
- en.wikipedia.org Harold Pruett
- en.m.wikipedia.org Harold Halibut
- http://gale-harold.it english/home.php