1. Mathematical Biology II: Spatial Models and Biomedical Applications;Murray,2001
2. Optimal control for a stochastic model of cancer chemotherapy;Coldman;Math. Biosci.,2000
3. A stochastic model of cancer growth with immune response;Boondirek;J. Kor. Phys. Soc.,2006
4. A stochastic model in tumor growth;Albano;J. Theor. Biol.,2006
5. http://www.medicalartlibrary.com/brain-tumor/). (accessed.