Baxter, James K.
Oxford University Press, 1981
Buku Teks
Dawe, Bruce
Longman Cheshire, 1983
Buku Teks
Dawe, Bruce
Longman, 1976
Buku Teks
Wright, Judith, 1915-2000
Angus and Robertson, 1970
Buku Teks
Stewart, Douglas
Angus & Robertson, 1973
Buku Teks