Whitworth, Michael H., author
Wiley-Blackwell, 2010
Buku Teks
Prentice-Hall, 1952
Buku Teks
Russel, James Anderson
H. J. Paris, 1939
Buku Klasik
Lennard, John, author
University Press, 2005
Buku Referensi
Chicago : The Modern Poetry Association
Majalah, Jurnal, Buletin