ISBN: 9784883195527Year of publication: 2010Publisher: 3A CorporationNumber of pages: 79 (main book)+ 13 (answer key)Languages: JapaneseCountry of origin: Japan
ISBN: 978-48721-774-11 // ISBN: 9784872177411Year of publication: 2015 (Third edition)Publisher: ASKNumber of pages: 142Languages: Japanese, EnglishCountry of origin: Japan
ISBN: 978-4-87424-286-5 // ISBN: 9784874242865Year of publication: 2016Publisher: KurosioNumber of pages: 129Language: JapaneseCountry of origin: Japan