1. R. W. Ruddon , Cancer Biology , Oxford University Press , 4th edn, 2007
2. CANSA , CANSA: Statistics, http://www.cansa.org.za/files/2016/08/Fact-Sheet-Cancer-NCR-2011-web-Aug-2016.pdf
3. WHO , WHO: Cancer, http://www.who.int/mediacentre/factsheets/fs297/en/
4. Treating metastatic cancer with nanotechnology
5. M. Gaba and C.Mohan , Development of drugs based on imidazole and benzimidazole bioactive heterocycles: Recent advances and future directions , Springer US , 25th edn, 2016