Forrester, Kim, author
Mosby, 2015
Buku Teks
Kennamer, Mike, author
Thomson/Delmar Learning, 2005
Buku Teks
Robinson, Alice M., author
Prentice-Hall, 1982
Buku Teks
Evans, G. Edward, 1937-, author
Neal-Schuman, 2013
Buku Teks
Green, Michelle A., author
Delmar Cengage Learning, 2011
Buku Teks