"Urushihara's Physics: The 99 Most Powerful Problems - Physics Basics & Physics" Akira Urushihara Price: ¥1300 H11-050 I purchased this several years ago, but I never used it and have kept it at home. Although it is unused, please understand that as it has been stored at home, the product may show signs of aging and deterioration. Please purchase only if you understand this. Instant purchase is available.