1. Allocating for Impact,2014
2. Impact Investment: An Emerging Asset Class;O’Donohe,2010
3. From the Margins to the Mainstream: Assessment of the Impact Investments Sector and Opportunities to Engage Mainstream Investors,2013
4. Investing for Social and Environmental Impact;Freireich,2009
5. https://gsgii.org/reports/profit-with-purpose-businesses/