ISBN 9784180659982 books & textbook
Asobi no bazukuri ni yakudatsu mubumento kyoiku ryoho : Egao ga egao o yobu kodomo kosodate shien.
Yoshifumi Kobayashi; Satsuki Oohashi
Meijitoshoshuppan. /2010-12-01 Tankobon Hardcover
isbn-10: 4180659980 / isbn-13: 9784180659982
