Samaras, Thomas T.
Prentice-Hall, 1979
Buku Teks
Kendrick, Tom
American Management Association, 2004
eBooks
Clough, Richard Hudson
John Wiley & Sons, c1991
Buku Teks
Clough, Richard Hudson
John Wiley & Sons, 2000
Buku Teks
Schexnayder, Clifford J.
McGraw-Hill, 2004
Buku Teks