Coba jelasin The Acoustic Monitoring Project dari SOSUS dong

The Third Battle:  Innovation in the US Navy's Silent Cold War (MIT: March, 2000)

Sound Surveillance System (SOSUS), GlobalSecurity.org

A Letter from Joe Worzel to Lamont-Doherty Earth Observatory regarding the establishment of Palisades Geophysical Institute, its work, and support of the education and research community

The SOund SUrveillance System, Federation of American Scientists, Intelligence Resource Program