Hira, Ron, author
[American Management Association;, ], 2005
eBooks
Hira, Ron, author
American Management Association, 2008
eBooks
Roberto Bellarmino Gratio, author
Fakultas Hukum Universitas Indonesia, 2021
UI - Skripsi (Membership)
Levitan, Sar A.
Harper & Row , 1982
Buku Teks
Munawar Suwartono, author
Universitas Indonesia, 1998
UI - Tesis (Membership)