Cribb, Robert Bridson
London : Curzon, 2000,
Buku Referensi
Shepperd, William R., author
Barnes and Noble, 1959
Buku Referensi
Roolvink, R., author
Djambatan, 1957
Buku Referensi
Davies, Cuthbert Collin, 1896-1974, author
Oxford University Press, 1959
Buku Teks
J.C.R. Camm, John McQuilton, editor
Fairfax, Syme & Weldon Associates, 1987
Buku Referensi