Brudney, Kent M., author
Thomson, 2003
Buku Teks
Moore, Brookee Noel, author
McGraw-Hill, 2015
Buku Teks
Moore, Brooke Noel, author
McGraw-Hill, 2004
Buku Teks
Stoner, Marilyn Smint, author
Philalelphia : JB Lippincott , 1999
Buku Teks
Verlinden, Jay, author
Wadsworth/Thomson Learning, 2005
Buku Teks