Mahathir bin Mohamad, 1925-, author
Kodansha International , 1995
Buku Teks
Russell, Lou, author
American Society for Training & Development, 2012
eBooks
edited by Albert D. van Nostrand and Charles H. Watts
Library Arts Press, 1959
Buku Teks
lead editor, Rob Koonce
Emerald, 2017
eBooks
Tatum Syarifah Adiningrum, author
[Publisher not identified], 2011
Artikel Jurnal