Thompson, Leigh L., author
Pearson - Prentice Hall, 2008
Buku Teks
Thompson, Leigh L., author
Pearson/Prentice Hall, 2004
Buku Teks
Lynn, Adele B., author
American Management Association, 2007
eBooks
Maginn, Michael, author
McGraw-Hill, 2003
Buku Teks
Wheelan, Susan A.
Sage, 1999
Buku Teks