"Difficult Physics Problems: Systems and Solutions" Revised 2nd Edition Tsugio Hattori Price: ¥1700 From Basics to Practical Application Solving Difficult Problems Through Systematic Study! Newton Press I have checked it thoroughly, and there are no writings, stains, or folds. It is in beautiful condition. I finished my university entrance exams without using it, and it has been stored in a dark place at home for a long time. Please understand that it has been in someone's possession once before.