1. Handprints, Not Footprints. Time Magazine, 2012http://content.time.com/time/magazine/article/0,9171,2108015,00.html
2. http://shine.mit.edu/publications-6
3. Emerging approaches, challenges and opportunities in life cycle assessment
4. Guidelines for Social Life Cycle Assessment of Products,2009
5. https://product-social-impact-assessment.com