edited by Roger Southall
Zed Books, 1988
Buku Teks
Turner, Ian, author
Nelson, 1976
Buku Teks
Beirne, Joseph A., author
Prentice-Hall, 1969
Buku Teks
Rivoli, Pietra, author
John Wiley & Sons, 2005
Buku Teks
edited by Adolf Sturmthal
University of Illinois Press, 1966
Buku Teks