Nita Kusuma Sugiono, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2016
UI - Makalah dan Kertas Kerja
Nicolas S. Witschi, editor
Wiley Balckwell, 2014
Buku Teks
Carr, Patricia A.
American Society for Training & Development, 2006
eBooks
editor, Wiendu Nuryanti
Gadjah Mada University Press , 1996
Buku Referensi
by Janice McLaughlin, Paul Rosen, David Skinner and Andrew Webster
Routledge, 1999
Buku Teks