Vernon, Alexia, author
American Society for Training & Development, 2012
eBooks
Michael, Watkins, author
Doseochulpansoso, 2004
Buku Teks
Dwi Syanthi Andriasari, author
Fakultas Kedokteran Universitas Indonesia, 1999
UI - Tesis Membership
Warner, Rex, 1905-1986, author
London Thames and Hudson 1955
Buku Teks
Solichin Salam, author
Gema Insani, 1992
Buku Teks