株式会社デジタルチェック　創業者 - SERP Analysis

https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%BF%E3%83%83%E3%83%97%E3%82%B9%E3%83%9A%E3%82%A4%E3%83%A1%E3%83%B3%E3%83%88

https://www.metaps-payment.com/company/newsrelease20140131.html

https://www.metaps-payment.com/company/newsrelease20130401.html

https://sogyotecho.jp/metaps-yamazaki-interview/

https://newspicks.com/news/9337123/body/

https://netshop.impress.co.jp/node/2892

http://polestar.0510.main.jp/?eid=875601

https://metaps.com/ja/press_release/page/12

https://shachomeikan.jp/industry_article/2603

https://www.value-press.com/s/pressrelease/78991