丸ノ内線、方南町駅へ直通運転開始 東京メトロが17年度から [Tokyo Metro to operate through trains on Marunouchi Line to Hōnanchō Station from fiscal 2017]. Nikkei Shimbun (in Japanese). Japan: Nikkei Inc. 13 November 2013. Retrieved 14 November 2013.
"「営団地下鉄」から「東京メトロ」へ" [From "Teito Rapid Transit Authority" to "Tokyo Metro"]. Tokyo Metro Online. 2006-07-08. Archived from the original on 16 May 2012. Retrieved 29 May 2022.
"「営団地下鉄」から「東京メトロ」へ" [From "Teito Rapid Transit Authority" to "Tokyo Metro"]. Tokyo Metro Online. 2006-07-08. Archived from the original on 16 May 2012. Retrieved 29 May 2022.