Phillips, Jack J.
American Management Association;, 2005
eBooks
Gerken, Louis C.
Wiley, 2014
Buku Teks
Trester, Kenneth R.
McGraw-Hill, 2012
Buku Teks
Little, Ian M.D.
George Allen and Unwin, 1965
Buku Teks
Root, Franklin R.
Lexington Books, 1987
Buku Teks