I purchased this in October 2025. I made some notes in it, which I've erased. However, there may be traces of the erasure, so please understand this. Textbook and problem set for obtaining a sanitation manager qualification. Includes the popular instructor's passing methods. - Title: Pass with This One Book! Kazuhide Muranaka's Sanitation Manager, Type 1 Textbook & Problem Set - Publisher: Kazana - Price: 1,870 yen - Contents: Textbook and problem set for obtaining a sanitation manager qualification - Features: Includes the popular instructor's passing methods - Target Audience: Sanitation Manager Qualification Exam Thank you for looking.