Russell, Frank M.
Russell And Russell, 1951
Buku Teks
Mason, John Brown
Stanford University Press, 1946
Buku Teks
Carr, Edward Hallet
Harver Torchbooks, 1947
Buku Teks
Rees, D.F.W. van
Librairie Arthur Rousseau, 1927
Buku Teks
edit oleh Mohammad Hatta
Publicate-Bureau, 1937
Buku Teks