- http://en.wikipedia.org/wiki/Punji_stick
- http://en.wikipedia.org/wiki/Comparison_of_the_AK-47_and_M16
- http://www.173rdairborne.com/weapons.htm
- http://www.vietnamwar.net/AK-47.htm
- http://en.wikipedia.org/wiki/AK-47
- http://thevietnamwar.info/punji-sticks/
- http://en.wikipedia.org/wiki/Bell_UH-1_Iroquois
- http://www.history.com/topics/vietnam-war/agent-orange
- https://en.wikipedia.org/wiki/Agent_Orange