Lowrance, William W., author
Cambridge University Press, 2012
Buku Teks
Chmara, Theresa, author
[American Management Association, ], 2009
eBooks
Defananda Amalia, author
Universitas Indonesia, 2016
UI - Skripsi (Membership)
Dickson, Donald T.
New York Free Press 1998,
Buku Teks
edited by Harriet H. Werley
Springer, 1976
Buku Teks