南北線の発車メロディをリニューアル！各駅に新しい発車メロディを導入します [Namboku Line departure melodies updated! New melodies to be introduced at each station] (PDF). News release (in Japanese). Japan: Tokyo Metro. 2 March 2015. Retrieved 6 March 2015.
"「営団地下鉄」から「東京メトロ」へ" [From "Teito Rapid Transit Authority" to "Tokyo Metro"]. Tokyo Metro Online. 8 July 2006. Archived from the original on 16 May 2012. Retrieved 29 May 2022.
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. 8 July 2006. Archived from the original on 16 May 2012. Retrieved 29 May 2022.
