Langan, John, 1942-, author
McGraw-Hill, 2003
Buku Teks
Arthur, Diane, author
American Management Association, 1997
eBooks
Weaver, Patricia C., author
Free Press, 1977
Buku Teks
Sant, Tom, author
American Management Association, 2008
eBooks
Koneru, Aruna, author
Tata McGraw-Hill, 2011
Buku Teks