Connerton, Paul, author
Cambridge University Press, 1989
eBooks
Lesikar, Raymond V. (Raymond Vincent), author
Dow Jones-Irwin , 1974
Buku Teks
Mungiu-Pippidi, Alina, author
Cambridge University Press, 2015
Buku Teks
Cortada, James W., author
John Wiley & Sons, 2009
Buku Teks
edited by Daniel L. Schacter
Harvard University Press, 1995
Buku Teks