Johnson, Carol
Allen and Unwin, 1989
Buku Teks
Klaveness, Jan O`Donnell
Macmillan, 1983
Buku Teks
Waugh, Evelyn, 1903-1966
Everyman's Library, 1994
Buku Teks
Bailey, Cyril
Oxford University Press, 1951.
Buku Teks
Azmi Ab Rahman
Mind Educate Resources, 2010
Buku Referensi