Huntington, Ellsworth, author
John Wiley & Sons, 1945
Buku Teks
Li, Xiaodong, author
China Renmin University Press, 2015
eBooks
Brinton, Crane, 1898-1968, author
Prentice-Hall, 1960
Buku Teks
Myers, Bernard S., author
McGraw-Hill, 1967
Buku Teks
Saul, John Ralston, author
Penguin Books, 1997
Buku Teks