World of Goo, World of Goo Wiki
AoM: Video Games: May 2018
World of Goo - Alchetron, The Free Social Encyclopedia
World of Goo (Game) - Giant Bomb
World of Goo (PC) (2008) - AoM: Video Games
World of Goo – Wikipedia
World of Goo 2, World of Goo Wiki
Han Min-goo - Wikipedia
File:Gift Games Studio.png - Wikimedia Commons, gift games studio
World of Goo - Wikipedia