Windrow, Martin
Grange Books, 2000
Buku Referensi
Franklin, Benjamin
The Spencer Press, 1936
Buku Teks
Blundell, Nigel
Octopus Books Limited, 1980
Buku Teks
Zerwekh, JoAnn Graham
Nursing Education Consultans , 2000
Buku Teks
Garth, Bryant
Sijthoff and Noordhoff, 1980
Buku Teks