"京急線全駅にて駅ナンバリングを開始します" [Station numbering will be introduced to all stations on the Keikyu Line]. KEIKYU WEB. 25 June 2010. Archived from the original on 21 February 2014. Retrieved 27 February 2023.
seasideline.co.jp
"会社概要" [Company Profile]. seasideline.co.jp (in Japanese). Archived from the original on 28 November 2023. Retrieved 7 February 2024.
web.archive.org
"会社概要" [Company Profile]. seasideline.co.jp (in Japanese). Archived from the original on 28 November 2023. Retrieved 7 February 2024.
"京急線全駅にて駅ナンバリングを開始します" [Station numbering will be introduced to all stations on the Keikyu Line]. KEIKYU WEB. 25 June 2010. Archived from the original on 21 February 2014. Retrieved 27 February 2023.