Bernstein, Albert J, author
McGraw-Hill, 2001
Buku Teks
Gargiulo, Terrence L., 1968- , author
American Management Association, 2008
eBooks
Kaplan, Burton, author
Prentice-Hall, 1996
Buku Teks
Marcic, Dorothy
Jossey-Bass, 1997
Buku Teks
Ni Made Nadya Maharani Utami, author
2019
UI - Skripsi (Membership)