edited by Richard M. Ketchum
Dutton, 1955
Buku Teks
Ross, Alf, author
Harvard University Press, 1952
Buku Teks
Lindsay, A.D., author
Oxford University Press, 1948
Buku Teks
Harrison, Ross
Routledge, 1993
Buku Teks
edited by Hendry W. Ehrmann
Vakils, Fiffer and Simons, 1963
Buku Teks