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 - [Models of Computation -- An Introduction to Computability Theory, Maribel Fernández, 2009](./docs/references/books/models-of-computation--maribel-fernández.pdf).
   - Chapter 7. Interaction-Based Models of Computation.
 
-## Community
-
-GitHub:
-
-- Organization: [github.com/cicada-lang](https://github.com/cicada-lang)
-
-Telegram:
-
-- English chat group: [CicadaLanguage](https://t.me/CicadaLanguage)
-- Chinese chat group: [CicadaLanguageCN](https://t.me/CicadaLanguageCN)
-
 ## Contributions
 
 To make a contribution, fork this project and create a pull request.