檢視 MediaWiki:Licenses 的原始碼

* Unknown_copyright|I don't know exactly
* Free licenses:
** MW-screenshot|MediaWiki screenshot
** PD|PD: public domain
** CC-by-sa-4.0|Creative Commons Attribution ShareAlike 4.0
** GFDL|GFDL: GNU Free Documentation License
** GPL|GPL: GNU General Public License
** LGPL|LGPL: GNU Lesser General Public License
* Non-free license (exception):
** CopyrightByWikimedia|Wikimedia images