Neustadt, Richard E., author
The Free Press, 1986
Buku Teks
Jenkins, Keith, author
Routledge, 1996
Buku Teks
Goodman, David G., author
Lexington Book, 2000
Buku Teks
Carey, Peter, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2014
UI - Pidato
Duke University Press, 1995
Buku Teks