Bodley, John H., author
Mayfield Publishing, 1982
Buku Teks
Bodley, John H., author
Mayfield Publishing, 1998
Buku Teks
edited by Lawrence E. Harrison, Samuel P. Huntington
Basic Books, 2000
Buku Teks
Aitchison, Jean, 1938-, author
Cambridge University Press, 2001
Buku Teks SO
Aitchison, Jean, 1938-, author
Cambridge University Press, 2013
Buku Teks SO