ISBN 9784484121130 books & textbook
Opun sabisu inobeshon : Seikatsusha shiten kara seicho to kyosoryoku no aru bijinesu o sozo suru.
Henry William Chesbrough; TBWA/HAKUHODO.; Hakuhodo.
Hankyukomyunikeshonzu. /2012-10-01 Tankobon Hardcover
isbn-10: 4484121131 / isbn-13: 9784484121130
