Shirley Chew, David Richards
West Sussex John Wiley & Sons Inc., 2014
Buku Teks
Hart, James D., author
Oxford University Press, 1986
Buku Referensi
edited by M.C. Howatson and Ian Chilvers
Oxford University Press, 1993
Buku Referensi
edited by Jahan Ramazani
Cambridge University Press, 2017
Buku Teks
edited by Phyllis Hartnoll and Peter Found
Oxford University Press , 1992
Buku Referensi