[1] ラドニア - Wikipedia () https://ja.wikipedia.org/wiki/%E3%83%A9%E3%83%89%E3%83%8B%E3%82%A2
[2] Ladonia (micronation) - Wikipedia () https://en.wikipedia.org/wiki/Ladonia_(micronation)
[3] Ladonia | The Proud, Free, and Interactive Micronation () https://www.ladonia.org/
[4] Ladonian Calendar - Ladonia, https://www.ladonia.org/ladonian-calendar/