Pynes, Joan
Jossey-Bass, 2013
Buku Teks
editors, Ronald J. Burke, Cary L. Cooper
Edward Elgar, 2012
Buku Teks
Daly, John L., 1952-
M.E. Sharpe, 2012
Buku Teks
Shim, Jae K.
Prentice-Hall, 1996
Buku Referensi
Anthony, Robert Newton, 1916-2006
McGraw-Hill, 2003
Buku Teks SO