Geldart, William, 1870-1922, author
Oxford University Press, 1991
Buku Teks
Hollander, Barnett, author
Bowes & Bowes, 1965
Buku Teks
Hanbury, Harold Grenville, author
Oxford University Press, 1960
Buku Teks
James, Philip S., author
Butterworth, 1959
Buku Teks
Beacon Press, 1957
Buku Teks