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

The relationship between university student learning outcomes and participation in social network services, social acceptance and attitude towards school life. - Sung Youl Park; Seung-Bong Cha; Keol Lim; Seung-Hwa Jung (Br. J. Educ. Technol., 2014)