補機専用機、これにて完全引退！ EF67形式直流電気機関車 さよならセレモニー、開催される [End of the line for the Class EF67 banking DC electric locomotive! Farewell ceremony held]. RM News. Japan: Neko Publishing. 29 March 2022. Retrieved 13 June 2023.
mynavi.jp
news.mynavi.jp
赤い機関車EF67形が勇退、それでも「セノハチ」に補機が必要な理由 [The red EF67 locomotive has been retired, but "Senobachi" still needs auxiliary equipment]. Mynavi News (in Japanese). 10 April 2022. Retrieved 13 June 2023.
toyokeizai.net
Matsunuma, Takeshi (26 April 2022). 貨物列車の｢後押し専門機関車｣EF67形ついに引退 [Specialized booster freight locomotive, Class EF67, finally withdrawn]. Toyo Keizai Online (in Japanese). Retrieved 13 June 2023.
