Hart, James D., author
Oxford University Press, 1986
Buku Referensi
Lees, Stella, author
Oxford University Press, 1993
Buku Referensi
edited by M.C. Howatson and Ian Chilvers
Oxford University Press, 1993
Buku Referensi
Kennedy, Michael
Oxford University Press, 1994
Buku Referensi
edited by Arthur F. Kinney and Thomas Warren Hopper
Wiley/Balckwell, 2017
Buku Teks