Churchill, Winston, Sir, 1874-1965, author
Dodd, Mead, 1956
Buku Teks
Murdoch, James, author
Routledge , 1903
Buku Referensi
Binder, Frederick M., author
D.C. Heath, 1988
Buku Teks
Anderson, Bonnie S.
Harper Perennial, 1988
Buku Teks
Green, H. M., author
Angus & Robertson , 1985
Buku Teks