Besag, Frank P., author
Sage, 1985
Buku Teks
Brammer, Lawrence M., author
Prentice-Hall, 1988
Buku Teks
Debi Oktarini, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Tesis (Membership)
Mescon, Michael H., author
Harper & Row, 1981
Buku Teks
Tosi, Henry L.
John Wiley & Sons, 1977
Buku Teks