Search by LayerThe documents are gathered in Series by organization.
The hierarchic structure of Series → Subseries → Subject is used.

• National Archives of Japan
• Diplomatic Archives of the Ministry of Foreign Affairs
• The National Institute for Defense Studies, Ministry of Defense
• University of the Ryukyus Library
• The Institute for Economic and Business Research Shiga University
• Hokkaido Prefectural Library
• Archives of Hokkaido
• Kobe University Library
• Research Support Office, Faculty of Economics, Oita University
• Hoover Institution, Stanford University
• Institute of Developing Economies, Japan External Trade Organization (JETRO)
• The Oriental Library (Toyo Bunko)
• Japan Press Research Institute