Buzan, Barry
The Harvester Press Ltd, 1983
Buku Teks
Lubis, Rizky Reza
Indonesia Defense University, 2018
Artikel Jurnal
Burke, Anthony
Cambridge University Press, 2008
eBooks
Snyder, Glenn H.
Princeton University Press, 1961
Buku Teks
compiled and with an introduction by Anthony W. Gray, Jr.
National Defence University, 1983
Buku Teks SO