URL：https://s3-us-west-2.amazonaws.com/courses-images-archive-read-only/wp-content/uploads/sites/1505/2016/01/04105203/Exchange-Process-graphic-1-1024x884-1024x884.jpg
掲載元：https://courses.lumenlearning.com/wmopen-principlesofmarketing/chapter/buying-process-stages/
