Champagne, Paul J., author
Quarum Books , 1989
Buku Teks
Adrian Iskandar, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2005
UI - Tesis (Membership)
Dent, Janice, author
[American Society for Training and Development Press, American Society for Training and Development Press], 2000
eBooks
Piskurich, George M., author
[American Society for Training & Development Press, American Society for Training & Development Press], 2002
eBooks
Daniels, Aubrey C., author
Bhuana Ilmu Populer, 2005
Buku Teks