Clutterbuck, David, 1947-, author
McGraw-Hill, 2012
Buku Teks
David, Mark, author
[American Society for Training & Development Press, American Society for Training & Development Press], 2002
eBooks
Connor, Mary, author
McGraw-Hill Open university press, 2012
Buku Teks
Fakultas Psikologi Universitas Indonesia, 2004
UI - Tesis Membership
Mertha Lidyawati, author
Fakultas Psikologi Universitas Indonesia, 2004
UI - Tesis Membership