I accidentally bought this and couldn't return it, so I'm selling it. I will ship it within 24 hours of payment. This is an easy-to-understand and excellent textbook! Problem and solution collection for telecommunications construction work management, 2025 edition. - Title: Telecommunications Construction Work Construction Management Second Examination Problem and Solution Collection - Level: 1st and 2nd Grade - Published: 2025 - Price: 3,500 yen - Publisher: Chiiki Kaihatsu Kenkyujo (Regional Development Institute) Thank you for looking.