Livermore, David
American Management Association, 2010
eBooks
Livermore, David
Amacom, 2010
Buku Teks SO
Ind, Allison
David McKay, 1958
Buku Teks SO
Wall, Bob
American Management Association;;, 2007
eBooks
Long, Roberrt H.
Robert Morris Associates , 1990
Buku Teks