"北部九州エリア157駅に「駅ナンバリング」を導入します" [“Station numbering” will be introduced at 157 stations in the northern Kyushu area] (PDF). jrkyushu.co.jp (in Japanese). 28 September 2018. Archived(PDF) from the original on 28 September 2018. Retrieved 7 January 2023.
"北部九州エリア157駅に「駅ナンバリング」を導入します" [“Station numbering” will be introduced at 157 stations in the northern Kyushu area] (PDF). jrkyushu.co.jp (in Japanese). 28 September 2018. Archived(PDF) from the original on 28 September 2018. Retrieved 7 January 2023.