ISBN 9784822273781 books & textbook
Sofuto o tanin ni tsukuraseru nihon jibun de tsukuru beikoku : Keiei to gijutsu kara mita kindaika no shomondai.
Nikkeibipisha : Nikkeibipimaketingu. /2013-12-01 Tankobon Softcover
isbn-10: 4822273784 / isbn-13: 9784822273781
