佐藤嘉大
http://www.hgu-dousoukai.org/wp-content/uploads/2018/09/8a4461272dd3993c24b38983dcab808d.pdf
http://www.pref.hokkaido.lg.jp/ss/tkk/hodo/gcomment/r2/r020404.htm https://www3.nhk.or.jp/sapporo-news/20200404/7000019834.html https://www.hbc.co.jp/news/d92799fb400c6d4c01d7071905e8e6f6.html
https://www.47news.jp/medical/4684238.html https://www.kyoiku-press.com/post-192365/ https://www.kyoiku-press.com/post-214834/ https://www.sankei.com/article/20200404-543NURFJ2FIR3DUGV63OK7HEEY/
https://education.dotsu.co.jp/articles/detail/48583 https://education.dotsu.co.jp/articles/detail/66166