There has been data ("お客には絶対に謝るな! Never Say “Sumimasen” to Your Clients! (光文社ペーパーバックスビジネスシリーズ)") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Tue Jun 18 10:06:53 2019, so the data displayed here has been removed .