- syfy.com happy
- music.apple.com us/song/happy/652255046
- songfacts.com lyrics/pharrell-williams/happy
- booksread.biz read/12869-heppi-si
- marvel.com characters/happy-hogan
- owlapps.net owlapps_apps/articles…
- wikikou.ru wiki/Happy_Humphrey
- wikiwand.com ru/Хэппи_Хамфри