Belich, James
Penguin Books, 1988
Buku Teks SO
edited by Patrick Baert, Sokratis M. Koniordos, Giovana Procacci, Carlo Rizza
Routledge Kegan Paul, 2010
Buku Teks SO
Bartlett, C. J.
Longman, 1992
Buku Teks SO
Currie, Wendy
John Wiley & Sons, 2000
Buku Teks SO
Keane, John
Cambridge University Press, 2005
Buku Teks SO