Dipboye, Robert L., author
Harcourt Brace College, 1994
Buku Teks
McCormick, Ernest J. (Ernest James), author
Prentice-Hall, 1984
Buku Teks
Riggio, Ronald E., author
Pearson, 2013
Buku Teks
Strohmer, Arthur F
Addison-Wesley , 1970
Buku Teks
Vicky Fitraza Kosmaya, author
Fakultas Psikologi Universitas Indonesia, 2012
UI - Tesis (Open)