~ the science text book: Stannard, P. Williamson, K. (2006). Science World 8 3rd ed. Macmillan Education Australia, South Yarra.
~ my exercise book :L
~ my big sister :D
~ myself :P
Resources:
- www.maexamhelp.com/id109.htm
- www.medicinenet.com/lung_cancer/article.htm
- www.oac.med.jhmi.edu/res_phys/Encyclopedia/Alveoli/Alveoli.html
- www.kidshealth.org/parent/general/body_basics/lungs.html#
- http://www.meds.com/lung/guide/u_lung.html
