Molony, John
Viking, 1987
Buku Teks
Shaw, A.G.L. (Alan George Lewers), author
Faber and Faber, 1955
Buku Teks
Smart, Terry L., author
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