Waugh, Anne
Churchill Livingstone, 2010
Buku Teks
Waugh, Anne, author
Churchill Livingstone, 2007
Buku Teks
Wilson, Kathleen J. W.
Churchill livingstone, 1998
Buku Teks
Cunningham, Daniel John, author
Oxford University Press, 1957
Buku Teks
Patton, Kevin T., author
Elsevier Mosby, 2013
Buku Teks