Shaw, Alan George Lewers
Faber and Faber, 1955
Buku Teks
Smart, Terry L.
Holt, Reinhart and Winston, 1987
Buku Teks
Scott, Ernest
Oxford University Press, 1953
Buku Teks
edited by Gordon Greenwood
Angus and Robertson, 1955
Buku Teks
edited by Gordon Greenwood
Angus and Robertson, 1969
Buku Teks