Kazuo, Ogura
Japan's Asian diplomacy: a legacy of two millennia
International House of Japan , 2015
Buku Teks
Kissinger, Henry, 1923-
Diplomacy
Schuter, 1994
Buku Teks
Nicolson, Harold
Diplomacy
Oxford, 1969
Buku Teks
Eisenstadt, Shmuel Noah
The political system of empires
Free Press, 1969
Buku Teks
The economic decline of empires
edited by Carlo M. Cipolla
Methuen, 1970
Buku Teks