Maccchiavelli, Mariarita, author
Sterling Publishing, 1998
Buku Referensi
Muhammad Putra Syah, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2015
UI - Skripsi (Membership)
Sisca Pratiwi, author
Fakultas Teknik Universitas Indonesia, 2010
UI - Skripsi (Open)
Taylor, James, author
[American Management Association, American Management Association], 2004
eBooks
McNab, Andy, author
Corgi books , 2000
Buku Teks