References
- Ahn, S., & Leem, J. (2013). Computer-aided education: A qualitative case study on critical success factors of digital textbook-based instruction. The Journal of Korean Association of Computer Education, 16(2), 49-60.
- Allen, I. E., & Seaman, J. (2011). Going the distance: Online education in the United States, 2011. Sloan Consortium. PO Box 1238, Newburyport, MA 01950.
- Byun, H., Ryu, J., & Song, Y. (2011). Research trends on digital textbook and meta- analysis on its academic achievement. The Korean Journal of Educational Methodology Studies, 23(3), 635-663.
- Han, C., & Lee, K. (2014). A desirable role of teachers in social studies class using digital textbook. Social Studies Education, 53(4), 81-94.
- Han, S., Ryu, J., & Kim, M. (2014). Research on classroom interaction of using digital textbook: Focused on math and science teaching. The Korean Journal of Educational Methodology Studies, 26(3), 533-560.
- Hong, H., Baik, H., & Lim, H. (2013). The meaning of 'Comprehensive' textbook 'not requiring supplementary materials' and it's implementation strategy. The Journal of Learner-Centered Curriculum and Instruction, 13(2), 256-283.
- Hwang, H., & Cho, H. (2014). Problems and improvement of elementary social studies digital textbooks. Social Studies Education, 53(3), 69-87.
- Jeong, Y., Im, H., & Kim, J. (2018). Analysis of Educational Effectiveness of Digital Textbooks for Elementary Students. Journal of The Korean Association of Information Education, 22(1), 141-149.
- Kim, H. (2013). A case analysis of the social studies class using digital textbook. Social Studies Education, 52(1), 85-102.
- Lee, M. (2012). Evaluation and improvement strategies of digital textbook for instructional suitability. The Journal of Korean Teacher Education, 29(1), 441-467.
- Lee, M., & Chang, S. (2015). Meta analysis for digital textbook research tendency. Studies of Korean Science, 41(1), 23-43.
- Leem, J. H., & Sung, E. M. (2018). Teachers' beliefs and technology acceptance concerning smart mobile devices for SMART education in South Korea. British Journal of Educational Technology, 49(3), 1-13.
- Lim, H., & Oh, P. (2014). A critical approach to an elementary science lesson using a digital science textbook. Journal of Science Education, 38(2), 270-285.
- Lim, Y., & Hong, H. (2013). Developmental phases from paper textbooks to digital textbooks. Korean Journal of Educational Research, 51(2), 1-36.
- Seo, J. (2012). Issue paper: Present and future of digital textbooks. Chungcheongbuk-do: Korea Institute of Curriculum and Evaluation.
- Sung, E. M. (2017). Exploring the characteristics on types of smart media usage of university Students in higher education with laten class analysis. The Journal of Educational Information and Media, 23(3), 631-655.
- Sung, J., Cho, Y., Jo, G., Huh, S., Yang, S. (2017). Exploring the roles of a digital textbook in learner-centered education. The Journal of Educational Information and Media, 23(4), 831-859.