Rhodes, Winston
Twayne Publishers, 1969
Buku Teks SO
Clarke, Marcus
Hale & Iremonger, c1983
Buku Teks SO
Martin, David
Thomas Nelson (Australia), 1972
Buku Teks SO
Wood, Frank
Pitman Pub., 1992
Buku Teks
Lawrence, David Herbert, 1885-1930
Everyman's Library, 1994
Buku Teks SO