Sinek, Simon, author
Portfolio/Penguin, 2009
Buku Teks
Baldoni, John, 1952-
American Management Association;, 2009
eBooks
Blanchard, Ken, author
Bareett-Koehler, 2012
Buku Teks
R.A. Arini Diah Indreswari, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Tesis (Membership)
Cuervo, Jorge, author
ATD Press, 2015
Buku Teks