Wallace, Robert, author
Time-Life Books, 1967
Buku Teks
Dallin, David J., author
Yale University Press, 1949
Buku Teks
Salisbury, Harrison E., author
Atheneum, 1965
Buku Teks
Fuad Yaumi, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
UI - Tesis Membership
Skrine, Francis Henry, 1847-1933, author
Cambridge University Press, 2013
Buku Teks