ISBN 4822337766 books & textbook
Mondai kaiketsuryoku kojo no tame no tokeigaku kiso : Ekuseru ni yoru deta saiensu sukiru.
Takahiro Sakota; Masayoshi Takahashi; Michiko Watanabe
Nihontokeikyokai. /2014-08-01 Tankobon Hardcover
isbn-10: 4822337766 / isbn-13: 9784822337766