Informal digital learning of English and English as an international language: The path less traveled. - Ju Seong Lee; Kilryoung Lee (Br. J. Educ. Technol., 2019)

The role of informal digital learning of English and L2 motivational self system in foreign language enjoyment. - Ju Seong Lee; Kilryoung Lee (Br. J. Educ. Technol., 2021)