Sebastian, Juliann G., author
Mosby, 1999
Buku Teks
Winingham, Maryl L., author
Mosby , 2001
Buku Teks
Berry, Michael A.
The Dryden Press , 1990
Buku Teks
O`Rourke IV, James S., author
Pearson Prentice Hall, 2004
Buku Teks
Schoen, Sterling H
Richard D.Irwin, 1982
Buku Teks