Artikel Jurnal
edited by Mohamed Izham Mohamed Ibrahim, Albert I. Wertheimer, Zheer-Ud-Din Babar
Academic Press, 2018
Buku Teks
Sappington, Erin, author
American Society for Training & Development, 2010
eBooks
Valenti, Diane, author
American Society for Training & Development, 2011
eBooks
Dewi Salma Prawiradilaga, author
Kencana, 2013
Buku Teks