“High School Training Note α Mathematics A” High School Education Research Group / High School Education Research Group Price: ¥580 #HighSchoolEducationResearchGroup #HighSchoolEducationResearchGroup #Book #Nature/Mathematics After purchase at the bookstore, there are writings in A up to page 5, and in I up to chapter 1. Please be aware of this. It has been stored at home, but I think it is relatively clean. Since there are writings, I have marked it as slightly dirty. I would be happy if you could make use of it. If you are concerned about the details, please refrain from purchasing.