ISBN: 978-4-7890-1349-9 // ISBN: 9784789013499Year of publication: 2009Publisher: The Japan TimesNumber of pages: 244Languages: Japanese and EnglishCountry of origin: Japan
ISBN: 978-4-7890-1350-5 // ISBN: 9784789013505Year of publication: 2009Publisher: The Japan TimesNumber of pages: 176 + 30 (answer key)Languages: English and JapaneseCountry of origin: Japan