Eyring, Pamela, author
American Society for Training & Development, 2008
eBooks
Levinson, Nan, author
[American Management Association;, ], 2000
eBooks
Ries, Al, author
McGraw-Hill, 1986
Buku Teks
Griya Ratri Putri, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2012
UI - Skripsi (Open)
Time Warner, 2005
Buku Teks