- Title: Practical Mathematics Important Problem Collection I II III A B C - Publisher: Suken Shuppan - Price: 1430 yen Thank you for viewing. This is a reference book I used for entrance exam preparation. There are no markings. Please understand that there may be oversights. Although I removed and used the attachments, they are all included. I used copies. It's been used only a few times, so it's almost in the same condition as when it was new. Since it's been stored by a private individual, there may be some minor scratches. Please purchase only if you understand that it is a used item. Instant purchase is welcome. Please feel free to comment if you have any questions.