ISBN 9784395420704 books & textbook
Nikyū doboku sekō kanri gishi doboku gōkaku tekisuto gakka to jitchi kore issatsu : 2014
Kaoru Aoyagi; Kunihiko Ikeda; Takehito Osanai; Kōji Kobayashi;
Tōkyō : Shōkokusha, 2014. /2014-03-01 Tankobon Hardcover
isbn-10: 4395420702 / isbn-13: 9784395420704
