Jackson, R.M. (Richard Meredith), 1903-1986, author
Penguin Books, 1972
Buku Teks
Powell, Edward, author
Oxford University Press, 1989
Buku Teks
Rozenberg, Joshua, author
Sceptre, 1995
Buku Teks
Cremona, Marise, author
Macmillan, 1989
Buku Teks
Smith, John Cyril, author
Butterworth, 1992
Buku Teks