Delvin, Kimberly, author
ATD Press, 2015
Buku Teks
Rusmiantinigsih
Perpustakaan Nasional RI, 2015
Artikel Jurnal
Kasmir, author
RajaGrafindo Persada, 2005
Buku Teks
Kamin, Maxine, author
American Society for Training & Development, 2010
eBooks
Albrecht, Albrecht, author
[American Society for Training & Development Press;, ], 2001
eBooks