Pangaribuan, Jekson, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2005
UI - Tesis (Membership)
Purnomo Edhi Raharjo, author
Fakultas Teknik Universitas Indonesia, 2010
UI - Skripsi (Open)
Tesar Ahmad Zakaria, author
Universitas Indonesia, 2010
UI - Tesis (Open)
Hudson, William J., author
John Wiley & Sons, 1993
Buku Teks
Entrepreneur Press, Cheryl Kimball
Entepreneur Press, 2011
Buku Teks