> For the complete documentation index, see [llms.txt](https://book.costoffreedom.cc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.costoffreedom.cc/index-5.md).

# Appendix

- [Call for Participation](https://book.costoffreedom.cc/index-5/call-for-participations.md)
- [Attributions](https://book.costoffreedom.cc/index-5/attributions.md)
- [Online Resources](https://book.costoffreedom.cc/index-5/online-resources.md)
- [License](https://book.costoffreedom.cc/index-5/license.md)