1. UNESCO Institute for Statistics, Organisation for Economic Co-operation and Development, World Education Indicators Programme, Education Trends in Perspective – Analysis of the World Education Indicators, 2005 edition.
2. Returning to Our Roots – The Engaged Institution, Kellogg Commission on the Future of State and Land-Grant Universities. National Association of State and Land-Grant Universities; February, 1999.
3. Talloires Declaration on the Civic Roles and Social Responsibilities of Higher Education, Talloires Conference 2005: Strengthening the Civic Roles and Social Responsibilities of Higher Education. Talloires, France:Tufts University European Center; September 15–17, 2005.
4. Agenda 21: Earth Summit – The United Nations Programme of Action from Rio, 1992.
5. United Nations Decade of Education for Sustainable Development (2005–2014): International implementation scheme. UNESCO; 2005.