SHRM, 2008
Buku Teks
Reny Pranofiani, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2003
UI - Tesis (Membership)
Sartain, Libby, author
Amacom , 2003
Buku Teks
Kenton, Barbara, author
Butterworth-Heinemann, 2010
Buku Teks
Reddington, Martin, author
Elseifer, 2005
Buku Teks