https://toyokeizai.net/articles/-/744311?page=3
https://sportiva.shueisha.co.jp/clm/golf/golf/2020/11/23/20/?page=2
https://news.yahoo.co.jp/articles/8472ce8355b3831d05d30341dadbd64cbd2d9078
https://www.nikkei.com/article/DGXZQOUA052RB0V00C24A4000000/