URL：https://s3-us-west-2.amazonaws.com/courses-images-archive-read-only/wp-content/uploads/sites/1505/2015/09/04104340/4543508614_0fba6fcf51_b-1024x680.jpg
掲載元：https://courses.lumenlearning.com/suny-marketing-spring2016/chapter/outcome-importance-of-customer/
