"「営団地下鉄」から「東京メトロ」へ" [From "Teito Rapid Transit Authority" to "Tokyo Metro"]. Tokyo Metro Online (in Japanese). 8 July 2006. Archived from the original on 16 May 2012. Retrieved 29 May 2022.
"千代田線二重橋前駅に副駅名称〈丸の内〉を導入します!"(PDF) (Press release) (in Japanese). 東京地下鉄. 15 December 2017. Archived from the original(PDF) on 15 May 2019. Retrieved 7 March 2020.
web.archive.org
"「営団地下鉄」から「東京メトロ」へ" [From "Teito Rapid Transit Authority" to "Tokyo Metro"]. Tokyo Metro Online (in Japanese). 8 July 2006. Archived from the original on 16 May 2012. Retrieved 29 May 2022.
"千代田線二重橋前駅に副駅名称〈丸の内〉を導入します!"(PDF) (Press release) (in Japanese). 東京地下鉄. 15 December 2017. Archived from the original(PDF) on 15 May 2019. Retrieved 7 March 2020.