edited by, Diana M. Bailey, Sharan L. Schwartzberg
F.A. Davis , 1995
Buku Teks SO
Rhodhes, Margaret L.
Routledge and Kegan Paul, 1986
Buku Teks SO
editor, Spyros Doxiadis ; editorial committee, Roger Blaney [and others]
John Wiley & Sons, 1987
Buku Teks
Cambridge University Press, 2003
Buku Teks
Cambridge University Press, 2004
Buku Teks SO