1. American Conference of Governmental Industrial Hygienists (ACGIH). Threshold Limits Value for Chemical Substances and Physical Agents &Biological Exposure Indices. Cincinnati, OH, USA, 2010; 206-215.
2. Kjellstrom T, Butler AJ, Lucas RM, Bonita R. Public health impact of global heating due to climate change: potential effects on chronic non-communicable diseases. Int J Public Health .2010; 55: 97-103.
3. Dash S. K, Kjellstrom T. Workplace heat stress in the context of rising temperature in India. Current Science. 2011; 101 (4): 496-503.
4. IPCC Climate Change: Synthesis Report. Contribution of Working Groups I, II and III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. 2007.
5. CDC - Heat Stress - NIOSH Workplace Safety and Health Topic”. www.cdc.gov. Retrieved 2016-04-15.