Wang, Ruili and Ryu, Hokyoung and Katuk, Norliza (2015) Assessment of student's cognitive-affective states in learning within a computer-based environment: Effects on performance. Journal of Information and Communication Technology, 14. pp. 153-176. ISSN 2180-3862

Wang, Ruili and Ryu, Hokyoung and Katuk, Norliza (2015) Assessment of students’ cognitive–affective states in learning within a computer-based environment: Effects on performance. Journal of ICT, 14. pp. 153-176. ISSN 1675-414X

Kim, Jieun and Ryu, Hokyoung and Katuk, Norliza and Wang, Ruili and Choi, Gyunghyun (2014) Enhancing competence and autonomy in computer-based instruction using a skill-challenge balancing strategy. Journal of Educational Computing Research, 50 (1). pp. 1-28. ISSN 0735-6331

Katuk, Norliza and Wang, Ruili and Ryu, Hokyoung (2011) Enhancement of learning experience using skill-challenge balancing approach. In: AI 2011: Advances in Artificial Intelligence. Springer Berlin Heidelberg, pp. 707-716. ISBN 978-3-642-25831-2