ISBN 4779120713 books & textbook
Jibun de erabu rōgo no sumaikata kurashikata
Keiko Chikayama; Nanako Yonezawa; Komyuniti nettowāku kyōkai.
Tōkyō : Sairyūsha, 2015. /2015-02-01 Tankobon Hardcover
isbn-10: 4779120713 / isbn-13: 9784779120718
