Goleman, Daniel, author
Bantam Books, 1995
Buku Teks
Liff, Stewart, author
American Management Association, 2007
eBooks
Lynn, Adele B., author
American Management Association, 2007
eBooks
Frigon, Normand L.
N.Y. American Management Association , 1996
Buku Teks
edited by Lorraine Dacre-Pool, Pamela Qualter
Wiley, 2018
Buku Teks