Anthony, Robert Newton, 1916-2006
McGraw-Hill, 1999
Buku Teks SO
edited by J. Steven Ott and Lisa A. Dicke; with case studies by C. Kenneth Meyer
Westview Press, 2016
Buku Teks
Plas, Jeanne M
Sage, 2000
Buku Teks
Pynes, Joan
Jossey-Bass, 2013
Buku Teks
Shim, Jae K.
Prentice-Hall, 1996
Buku Referensi