Harkness, Gail A., author
Mosby , 1996
Buku Teks
edited by Maurice King
Oxford University Press , 1966
Buku Teks
Winkelman, Chris, author
Saunders , 2010
Buku Teks
Jacobs, Philip
Aspen Publication, 1987
Buku Teks
Black, Joyce M., author
W.B. Saunders, 1997
Buku Teks