Elvin, Mark, author
Eyre Methuen, 1973
Buku Teks
Stratton, Carol, author
Oxford Univesity Press, 1981
Buku Teks
Muller, Herbert J.
Oxford University Press , 1953
Buku Teks
Arnot, Dorothy S.
Macmillan, 1962
Buku Teks
Monica Janowski, Tim Ingold.
Routledge, 2016
Buku Teks