ISBN: 978-48-83194-76-6 // ISBN: 9784883194766Year of publication: 2008Publisher: 3A CorporationNumber of pages: 199Languages: Japanese Country of origin: Japan
ISBN: 978-48-83195-07-7// ISBN: 9784883195077Year of publication: 2009Publisher: 3A NetworkNumber of pages: 187 (main book) + 44 (answer key)Languages: Japanese Country of origin: Japan