- Jon Ritman, a television engineer who had been programming games since 1982 .
- Editor's Recognition Awards
- Zvi H. Oster, MD. Keith R.
- ZX Spectrum Files
- principalmente al autor de esta genialidad, Jon Ritman, una referencia donde las haya para todo lo que tiene que ver con el mundo del ZX Spectrum.
- Angina in Idiopathic Hypertrophic Subaortic Stenosis
- JOHN SUTTON, M.B., ABDUL J.
- H ermetically open
- first flo o r| reading ro o m. Paracelsus (-). John Dee (-).
- App of the Day: Super Lemonade Factory
- With one character good at jumping, the other handy at carrying stuff and the object to reunite the pair at the exit, it's oddly reminiscent of Jon Ritman/Bernie Drummond classic Head Over Heels, only without the dogs, Daleks and doughnut guns.
- Jon Ritman - Wikipedia, the free encyclopedia
- Jon Ritman is a software developer, notable for his work on major 1980s video games.
- Ritman, Jon
- Nov 21, 2006 Photos and descriptions of the games he programmed for the Sinclair ZX81 and ZX Spectrum.
- Jon Ritman's Soccerama [SNES - Unreleased] | Unseen 64: Beta
- Apr 2, 2010 Soccerama is a cancelled sport game that was in development by Domark for the Super Nintendo.
- amstradmuseum.com interview Jon Ritman
- amstrad museum, the amstrad computers museum.
Jon Ritman is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Jon Ritman books and related discussion.
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