Zed Books Ltd., 1988
Buku Teks
Maija Mustaniemi-Laakso, Hans-Otto Sano, editors
Routledge, Taylor & Francis Group, 2017
Buku Teks
Steiner, Henry J., author
Oxford University Press, 2000
Buku Teks
Hawley, Amos H., author
The University of Chicago Press, 1986
Buku Teks
Getis, Arthur, author
Macmillan, 1985
Buku Teks