Holmquist, Lars Erik, author
Elsevier , 2012
Buku Teks
Coorough, Calleen, author
Harcourt College , 2001
Buku Teks
Hooks, Ivy F., author
[American Management Association, ], 2001
eBooks
Pine, B. Joseph, author
Berrett-Koehler, 2011
Buku Teks
Lambert, Joe, author
Routledge, Taylor & Francis Group, 2018
Buku Teks