{{sfn|Hamburg|2002|p=}}

* {{cite book | last=Hamburg | first=David A. | title=No More Killing Fields | publisher=Rowman & Littlefield | date=2002 | isbn=978-0-7425-1675-5}}

<ref name="z389">{{cite book | last=Hamburg | first=David A. | title=No More Killing Fields | publisher=Rowman & Littlefield | date=2002 | isbn=978-0-7425-1675-5 | page=}}</ref>