[1] 球陽 - Wikipedia (2020-05-17 19:59:46 +09:00) https://ja.wikipedia.org/wiki/%E7%90%83%E9%99%BD
[2] 球陽記事 - Wikisource (2020-05-17 20:01:51 +09:00) https://zh.wikisource.org/wiki/%E7%90%83%E9%99%BD%E8%A8%98%E4%BA%8B?uselang=ja