Gillespie, Stuart
Wiley, 2011
Buku Teks
edited by Geoffrey Miles
Routledge, 1999
Buku Teks
edited by Bernard Knox
W.W. Norton, 1993
Buku Referensi
Keene, Donald
Grove Press, 1960
Buku Teks
edited by Robert Weaver
Oxford University Press, 1981
Buku Teks