Hart, B. H. Liddell
George Allen and Unwin, 1946
Buku Teks
Diamond, Jared, author
Viking, 2012
Buku Teks
Jones, Leo
Cambridge University Press, 1989
Buku Teks
Platt, Nathaniel, author
Prentice-Hall, 1964
Buku Teks
Oldenbourg, Zoe
Pantheon Books, 1965
Buku Teks