Williams, Basil
The British empire
Oxford University, 1945
 Buku Klasik
Williamson, J.A.
The British Empire and Common Wealth
Macmillan, 1965
 Buku Teks SO
Atlas of the British empire General
Christopher Bayly, editor
acts On File Book, 1989
 Buku Referensi
Masefield, Muriel
The British commonwealth and empire
G. Bell and Sons, 1954
 Buku Teks SO
Hall, Walter Phelps
A history of England and the British empire
Ginn and Company, 1953
 Buku Teks SO