Cheney, Ward, author
Cengage Learning , 2013
Buku Teks
Bronzing, Joseph D.
Addison-Wesley, 1982
Buku Teks
Chambers, Andrew D., author
Pitman, 1987
Buku Teks
Ooi, Vincent B.Y.
Edinburgh University Press, 1998
Buku Teks
The London Hospital / UDO, 1972
Buku Teks