- http://www.ajc.pt/cienciaj/n12/gta.php3
- http://www21.brinkster.com/cacep/projetos/09052003/09052003.asp
- http://br.geocities.com/aafaa_br/index.htm
- http://danielrascio.vilabol.uol.com.br/enderecos.html
- http://homepage.ntlworld.com/telescope/Rocketweb/index.htm
- http://ourworld.compuserve.com/homepages/pagrosse/h2oRocketIndex.htm
- http://hazchem.smoke.com.au/~ic/water-rocket.html
