Tolong jelaskan mengenai Karya dari Roy Hidemichi Akagi

The Town Proprietors of the New England Colonies (1924)(reprinted 1963)

Japanese Civilization: A Syllabus (1927)

Japan's Foreign Relations, 1542-1936: A Short History (1937)

Future of American Trade with Manchukuko (1940)

The Postage Stamps of Manchoukuo(1941)