단일국가(비교)

* [[https://ko.m.wikipedia.org/wiki/%EB%8B%A8%EC%9D%BC_%EA%B5%AD%EA%B0%80|위키백과]]

* [[https://m.terms.naver.com/entry.naver?docId=1079780&cid=40942&categoryId=31646|두산백과]]