Overcoming student resistance to group work: Online versus face-to-face. - Glenn Gordon Smith; Chris Sorensen; Andrew Gump; Allen J. Heindel; Mieke Caris; Christopher D. Martinez (Internet High. Educ., 2011)

Online Learning at the K-12 Level: An Examination of Teacher Technology Use by Subject Area and Grade Level. - Chris Sorensen (Int. J. Online Pedagog. Course Des., 2016)