Nakamura, Hajime, author
Kodansha, 1975
Buku Teks
Journal of The History of Ideas, Inc, 1961
Majalah, Jurnal, Buletin
Lawson, Robert B., author
Routledge & Francis Group, 2018
Buku Teks
Singer, Charles, author
Clarendon Press, 1962
Buku Teks
Berlin, Isaiah
Viking Press, 1981
Buku Teks