Rothwell, William J., 1951-
American Management Association, 2012
eBooks
Gray, Edmund R.
Macmillan, 1990
Buku Teks
Sheehan, Brian
PowerHouse Books, 2013
Buku Teks
Kates, Andrea
McGraw-Hill, 2012
Buku Teks
edited by Patrick De Pelsmacker
Emerald, 2016
eBooks