Hein, Eleanor C., author
Little, Brown, 1980
Buku Teks
Ellis, Roger B., author
Churchill Livingstone, 2004
Buku Teks
Norton, Barbara A.
Appleton-Century-Crofts , 1986
Buku Teks
Balzer-Riley, Julia W., author
Elsevier/Mosby, 2012
Buku Teks
Parker, Marilyn E., author
F.A. Davis , 2001
Buku Teks