西九州新幹線の開業日について [About the opening date of the West Kyushu Shinkansen] (PDF). jrkyushu.co.jp (in Japanese). 2 February 2022. Archived from the original(PDF) on 1 May 2022. Retrieved 11 June 2022.
西九州新幹線の開業日について [About the opening date of the West Kyushu Shinkansen] (PDF). jrkyushu.co.jp (in Japanese). 2 February 2022. Archived from the original(PDF) on 1 May 2022. Retrieved 11 June 2022.