Clark, Robert P., author
Erlangga, 1989
Buku Teks
Artikel Jurnal
Betram, Christoph, author
Bina Aksara, 1988
Buku Teks
Tommi Legowo, author
Centre for Strategic and International Studies, 1993
Buku Teks
Oya Sonjaya Bachtiar, author
Universitas Indonesia, 2008
UI - Tesis (Open)