There has been data ("誰も教えてくれない「アダルトサイト」商売の始め方・儲け方―社員も店舗も専門知識も要らない、風俗ビジネス") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Tue Dec 24 13:05:38 2019, so the data displayed here has been removed .