"京成電鉄、新京成電鉄を吸収合併へ2025年4月 現在の路線・駅は維持する方針" [Keisei Electric Railway will absorb the Shin-Keisei Electric Railway in April 2025; Plans made to maintain current routes and stations]. Chiba Nippo (in Japanese). 31 October 2023. Archived from the original on 31 October 2023. Retrieved 31 October 2023.
"新京成電鉄、解散・消滅へ - 京成電鉄が吸収合併、2025年実施予定" [Shin-Keisei Electric Railway to dissolve and disappear - Keisei Electric Railway will absorb the railway in the merger, scheduled to take place in 2025]. MyNavi Corporation (in Japanese). 31 October 2023. Archived from the original on 31 October 2023. Retrieved 31 October 2023.
"京成電鉄「成田スカイアクセス」開業にともない7月17日にダイヤ改正を実施" [Timetable Revisions to take place on Keisei Railway on 17 July for Opening of the Narita Airport Line]. Japan Railfan Magazine Online (in Japanese). 28 May 2010. Archived from the original on 3 February 2023. Retrieved 31 January 2024.
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"京成電鉄「成田スカイアクセス」開業にともない7月17日にダイヤ改正を実施" [Timetable Revisions to take place on Keisei Railway on 17 July for Opening of the Narita Airport Line]. Japan Railfan Magazine Online (in Japanese). 28 May 2010. Archived from the original on 3 February 2023. Retrieved 31 January 2024.
"京成電鉄、新京成電鉄を吸収合併へ2025年4月 現在の路線・駅は維持する方針" [Keisei Electric Railway will absorb the Shin-Keisei Electric Railway in April 2025; Plans made to maintain current routes and stations]. Chiba Nippo (in Japanese). 31 October 2023. Archived from the original on 31 October 2023. Retrieved 31 October 2023.
"新京成電鉄、解散・消滅へ - 京成電鉄が吸収合併、2025年実施予定" [Shin-Keisei Electric Railway to dissolve and disappear - Keisei Electric Railway will absorb the railway in the merger, scheduled to take place in 2025]. MyNavi Corporation (in Japanese). 31 October 2023. Archived from the original on 31 October 2023. Retrieved 31 October 2023.