David, Mark
[American Society for Training & Development Press, American Society for Training & Development Press], 2002
eBooks
Connor, Mary
McGraw-Hill Open university press, 2012
Buku Teks
Fakultas Psikologi Universitas Indonesia, 2004
UI - Tesis Membership
Mertha Lidyawati
Fakultas Psikologi Universitas Indonesia, 2004
UI - Tesis Membership
Siregar, Diana Septia D.
Fakultas Psikologi Universitas Indonesia, 2004
UI - Tesis Membership