[1] 写植記号BA-90 (しゃしょくきごうびーえーきゅうじゅう)とは【ピクシブ百科事典】, 2025-01-15T07:13:10.000Z https://dic.pixiv.net/a/%E5%86%99%E6%A4%8D%E8%A8%98%E5%8F%B7BA-90

[2] 俗字の字典, 2025-01-15T07:14:31.000Z, 2021-04-21T23:02:09.663Z https://web.archive.org/web/20210421192108/http://hp.vector.co.jp/authors/VA000964/html/zokuji.htm

[3] BA-90 - Wikipedia, 2025-01-12T12:51:52.000Z, 2025-01-27T05:06:11.410Z https://ja.wikipedia.org/wiki/BA-90

[4] ログイン (雑誌) - Wikipedia, 2025-01-16T12:20:08.000Z, 2025-01-27T05:06:32.331Z https://ja.wikipedia.org/wiki/%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3_(%E9%9B%91%E8%AA%8C)#%E3%81%BD%E3%81%92%E3%83%A0%E3%81%9F%E3%83%9E%E3%83%BC%E3%82%AF

[5] FamicomRoom - ファミコンの部屋「写植記号BA-90の部屋」, 2017-06-14T18:18:08.000Z, 2025-01-27T05:13:22.327Z https://www.fc1983.com/shashoku_BA-90.html