3AbdMutalibEmbong,Azelin M Noor,etc.. E-Books as textbooks in the classroom[J].Social and Behavioral Sciences,2012, (47):1802- 1809.
4Silas Marques.e-Textbooks Usage by Students at Andrews University: A Study of Attitudes, Perceptions, and Behaviors[DB/OL].http://docs. lib.purdue.edu/iatul/2012/papers/, 2013 -01-01.
5MalathiLetchumanan, Rohani Ahmad Tarmizi. Utilization of e-book among University Mathematics Students[J].Procedia Social and Behavioral Sciences,2010, (8):580-587.