Redmond, Peter W.D., author
Macdonald and Evans, 1965
Buku Teks
Palfreman, David, author
Pitman, 1993
Buku Teks
Perry, F. E.
Cox & Wyman Ltd, 1972
Buku Teks
McLoughlin, J., author
Manchester University Press, 1972
Buku Teks
Poh, Chu Chai, author
LexisNexis, 2011
Buku Teks