The effects of different instructor facilitation approaches on students' interactions during asynchronous online discussions. - Heejung An; Sunghee Shin; Keol Lim (Comput. Educ., 2009)

E-book Usability in Educational Technology Classes: Teachers and Teacher Candidates' Perception toward E-book for Teaching and Learning. - Sunghee Shin (Int. J. Distance Educ. Technol., 2014)