1. Text Book of Medical Physiology;Guyton,2013
2. Diabetes Fact sheet No. 312, WHO, June 2016, Archived from the original on 26 August 2013 (retrieved 31 July 2016).
3. “Causes of Diabetes”, NIDDK, August 2014 (retrieved 31 July 2016).
4. Types of Diabetes, NIDDK, February 2014, Retrieved 31 July 2016.
5. “Causes of Diabetes”, NIDDK, August 2014 (retrieved 31 July 2016).