"Glossary of Defense Acquisition Acronyms and Terms, 12th Edition (plus updates since publication), accessed on 22 April 2009, Defense Acquisition University".
Truy cập ngày 26 tháng 10 năm 2016.  ^ a ă “Glossary of Defense Acquisition Acronyms and Terms, 12th Edition (plus updates since publication), accessed on 22 April 2009, Defense Acquisition University”.