ISBN: 978-4-7890-1730-5 // ISBN: 9784789017305Year of publication: 2020Publisher: The Japan TimesNumber of pages: 382Language: Japanese, EnglishCountry of origin: Japan
ISBN: 978-4-7890-1731-2 // ISBN: 9784789017312Year of publication: 2020Publisher: The Japan TimesNumber of pages: 152Language: English, JapaneseCountry of origin: Japan
ISBN: 978-4-7890-1732-9 // ISBN: 9784789017329Year of publication: 2020Publisher: The Japan TimesNumber of pages: 390Language: Japanese, EnglishCountry of origin: Japan
ISBN: 978-4-7890-1733-6 // ISBN: 9784789017336Year of publication: 2020Publisher: The Japan TimesNumber of pages: 132Language: Japanese, EnglishCountry of origin: Japan
ISBN: 978-4-7890-1736-7 // ISBN: 9784789017367Year of publication: 2020Publisher: The Japan TimesNumber of pages: 81Language: JapaneseCountry of origin: Japan
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
ISBN: 978-4-7890-1734-3 // ISBN: 9784789017343Year of publication: 2021Publisher: The Japan TimesNumber of pages: 175 (Main book) + 81 (Answer key)Language: JapaneseCountry of origin: Japan