1. Afzal, H., Zahid, K., Ali, Q., Sarwar, K., Shakoor, S., Nasir, U., & Nasir, I. A. (2016). Role of biotechnology in improving human health. Journal of Molecular Biomarkers & Diagnosis, 8(309), 2.
2. Alexander, M. (1999). Biodegradation and bioremediation (2nd ed.). Academic Press.
3. Almeida, H., Amaral, M. H., & Lobão, P. (2011). Drugs obtained by biotechnology processing. Brazilian Journal of Pharmaceutical Sciences, 47(2), 199–207.
4. Anderson, J. (1996). Feeding a hungrier world. Phytopathology News, 30(6), 90–91.
5. Andrew P., “Traces of terror: the science; scientists create a live polio virus.”(New York Times, July 12, 2002). https://www.nytimes.com/2002/07/12/us/traces-of-terror-the-science-scientists-create-a-live-polio-virus.html. Accessed 3 Feb 2021