"京成線各駅で「駅ナンバリング」を導入いたします" ["Station numbering" will be introduced to each station on the Keisei Line] (PDF). keisei.co.jp (in Japanese). Archived from the original(PDF) on 28 September 2022. Retrieved 25 February 2023.
tetsudo.com
"京成と京急が駅ナンバリングを導入" [Keisei and Keikyu to introduce station numbering]. Tetsudo News (in Japanese). 6 June 2010. Archived from the original on 26 February 2023. Retrieved 26 February 2023.
"「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.
"京成線各駅で「駅ナンバリング」を導入いたします" ["Station numbering" will be introduced to each station on the Keisei Line] (PDF). keisei.co.jp (in Japanese). Archived from the original(PDF) on 28 September 2022. Retrieved 25 February 2023.
"京成と京急が駅ナンバリングを導入" [Keisei and Keikyu to introduce station numbering]. Tetsudo News (in Japanese). 6 June 2010. Archived from the original on 26 February 2023. Retrieved 26 February 2023.