- Ministry of Land,Infrastructure and Transport
- National Institute for Land and Infrastructure Management
- Geographical Survey Institute
- Building Research Institute
- Public Works Research Institute
- The Tohoku Regional Bureau, Ministry of Land, Infrastructure and Transport
- Ministry of Land, Infrastructure and Transport
Kinki Regional Development Bureau - Tateyama Sabo Work Office
- Rokko Sabo Office
- Yamanashi Prefecture
- Nagano Prefecture
- Guide to Japan Sabo Association
- University of Yamanashi Faculty of Engineering
Dapartment of Civil and Environmental Engineering
HYDRAULIC ENGINEERING LABORATORY - Japan Society of Erosion Control Engineering
- Nagano Prefectural Police