Trubus, author
2000
UI - Tesis Membership
Cholifah, author
1997
UI - Tesis (Membership)
Dixon, Patrick
Kingsway , 1994
Buku Teks
Abieser Yogi, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2003
UI - Tesis (Membership)
Boyd, Susan, author
American Society for Training and Development Press, 2005
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