3Li Yuan,Sheila Maceill,Wilbert Kraan.Open Educational Resources-opportunities and Challenges for Higher Education[J].CETIS, 2008.
4Clow, Doug.MOOCs and the Funnel of Participation [R].Leuven,Belgium:Third Conference on Learning Analytics and Knowledge (LAK 2013 ), 2013-04-08, Leuven,Belgium.
5Brian D. Voss.Massive Open Online Courses(MOOCs): A Primer for University and College Board Members[DB/OL].[2014-10-19]. http://agb.org/reports/2013/massive-open-online-courses-moocs-primer-university-and-college-board-members.