Japanese Communist Party (August 12, 1999). "三鷹事件、松川事件とは?" [What are Mitaka, Matsukawa Incidents?] (in Japanese). Archived from the original on October 9, 2021. Retrieved October 9, 2021.
Japanese Communist Party (August 12, 1999). "三鷹事件、松川事件とは?" [What are Mitaka, Matsukawa Incidents?] (in Japanese). Archived from the original on October 9, 2021. Retrieved October 9, 2021.