Rockport publishers, Inc.;, 2011
Buku Referensi
Rockport publishers, Inc., 2008
Buku Referensi
Klimchuk, Marianne Rosner, author
John Wiley & Sons, 2012
Buku Teks
Daniels, Lawrence J., 1942- , author
[American Management Association;, ], 2013
eBooks
Mitchell, Michael N., author
Stata Press, 2012
Buku Teks