Feis, Herbert
Princeton University press, 1957
Buku Teks
Feis, Herbert
Princeton Univesity Press, 1957
Buku Teks
Overy, Richard, author
Andre Deutsch, 2014
Buku Teks
Foreign Languages Publishing House, 1967
Buku Teks
Young, Peter, author
Bison Books, 1985
Buku Referensi