References
- Cotheran, J. A., R. N. Giese, and R. J. Rezba. 1993. Students and research: Practical strategies for science classrooms and competitions. 2nd ed. Dubuque, IA: Kendall Hunt Publishing.
- National Research Council. 1996. National Science Education Standards. Washington, DC: National Academy Press.
- Pitsco Dacta Lego Education. 2005. Straw rocket launcher. www.pitsco-legodacta.com