Scott, Austin Wakeman, 1884-1981, author
Little, Brown, 1963
Buku Teks
Penner, J. E. (James E.), author
Oxford University Press, 2016
Buku Teks
Gardner, Simon
Clarendon Press, 1990
Buku Teks
Ramjohn, Mohamed
Cavendisch Publishing, 1998
Buku Teks
Pearce, Robert
Butterworth, 1998
Buku Teks