https://dot.asahi.com/wa/2018030900028.html?page=2

https://www.technologyreview.jp/nl/real-people-are-now-hailing-waymos-robotic-taxis-without-a-driver-in-sight/

http://webronza.asahi.com/national/articles/2018031200001.html

https://www.buzzfeed.com/jp/ryosukekamba/fusako?utm_term=.cjxqBpJMa#.nuMb6Y3Wp

https://headlines.yahoo.co.jp/hl?a=20180318-00000004-mai-soci