Morrisey, George L., author
Pearson Education Asia, 2002
Buku Teks
Theresia Chrisnani R., author
Universitas Indonesia, 2002
UI - Tesis (Membership)
Pearce, John A., author
Salemba Empat, 2011
Buku Teks
Didik Suhartono, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2004
UI - Tesis (Membership)
Puji Triastuti, author
Universitas Indonesia, 2001
UI - Tesis (Membership)