Anderson, Matt, 1987-, author
McGraw-Hill, 2012
Buku Teks
Salmon, Michael, author
McGraw-Hill, 2012
Buku Teks
Tuchman, Robert, author
American Management Association;, 2009
eBooks
Pugh, David G., author
American Management Association;, 2005
eBooks
Paulson, Edward, author
Prenada Media, 2003
Buku Teks