1. Fact Sheet-White House Unveils America's College Promise Proposal: Tuition-Free Community College for Responsible Students;The White House
2. Obama Steps Up Push for Free;See Ashley;Inside Higher Ed,2015
3. Financial aid and students' college decisions: evidence from the district of columbia tuition assistance grant program;See Owen Daugherty ; Abraham;National Association of Student Financial Aid Administrators,2006
4. Effects of reduced community college tuition on college choices and degree completion;R Acton;Education Finance and Policy,2021