[1] SCAPIN - Wikipedia (2016-11-27 22:41:32 +09:00) https://ja.wikipedia.org/wiki/SCAPIN

[2] SCAPIN1744/36 - History of Citizens Band Radio (2017-07-27 01:23:40 +09:00) https://sites.google.com/site/cb465mhz/amateur-radio/scapin1744-36

[4] Supreme Commander for the Allied Powers Directives to the Japanese Government (SCAPINs) | 憲政資料室の所蔵資料 | 国立国会図書館 (2017-08-03 00:07:14 +09:00) http://rnavi.ndl.go.jp/kensei/entry/SCA-1.php

[3] SCAPIN目次, 2023-06-14T08:45:46.000Z, 2008-12-22T00:28:50.525Z https://web.archive.org/web/20081222002212/http://www.geocities.jp/toaniuniu/shiryou/SCAPIN_index.html