新京成電鉄8900形8918編成が試運転 [Shin-Keisei 8900 series set 8918 on test-run]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 6 September 2014. Archived from the original on 17 April 2019. Retrieved 6 September 2014.
shinkeisei.co.jp
歴史年表1990年 - 1999年 [Chronology 1990 - 1999]. Official website (in Japanese). Japan: Shin-Keisei Electric Railway. 2009. Archived from the original on 4 February 2015. Retrieved 6 September 2014.
web.archive.org
歴史年表1990年 - 1999年 [Chronology 1990 - 1999]. Official website (in Japanese). Japan: Shin-Keisei Electric Railway. 2009. Archived from the original on 4 February 2015. Retrieved 6 September 2014.
新京成電鉄8900形8918編成が試運転 [Shin-Keisei 8900 series set 8918 on test-run]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 6 September 2014. Archived from the original on 17 April 2019. Retrieved 6 September 2014.