【京成】3050形3051編成の話題 [(Keisei) On 3050 series set 3051]. 鉄道ホビダス. Japan: Neko Publishing. 24 December 2019. Archived from the original on 5 September 2023. Retrieved 5 September 2023.
この通勤電車、実は元「スカイライナー」なんです。最後の1本となった京成3400形 [This commuter train is actually a former Skyliner. The last Keisei 3400 series]. RM News. Japan: Neko Publishing. 4 September 2023. Archived from the original on 5 September 2023. Retrieved 5 September 2023.
keisei.co.jp
"「まるごと3400形の旅」を開催します!" [3400 Series round trip will be held!] (PDF). Keisei.co.jp. 15 September 2021. Archived from the original(PDF) on 7 November 2021. Retrieved 4 August 2022.
railf.jp
"『けいせいキッズデー』開催" ["Keisei Kids Day" held]. Japan Railfan Magazine Online (in Japanese). 24 October 2020. Archived from the original on 2 November 2021. Retrieved 4 August 2022.
web.archive.org
【京成】3050形3051編成の話題 [(Keisei) On 3050 series set 3051]. 鉄道ホビダス. Japan: Neko Publishing. 24 December 2019. Archived from the original on 5 September 2023. Retrieved 5 September 2023.
"「まるごと3400形の旅」を開催します!" [3400 Series round trip will be held!] (PDF). Keisei.co.jp. 15 September 2021. Archived from the original(PDF) on 7 November 2021. Retrieved 4 August 2022.
この通勤電車、実は元「スカイライナー」なんです。最後の1本となった京成3400形 [This commuter train is actually a former Skyliner. The last Keisei 3400 series]. RM News. Japan: Neko Publishing. 4 September 2023. Archived from the original on 5 September 2023. Retrieved 5 September 2023.
"『けいせいキッズデー』開催" ["Keisei Kids Day" held]. Japan Railfan Magazine Online (in Japanese). 24 October 2020. Archived from the original on 2 November 2021. Retrieved 4 August 2022.