Development and evaluation of multimedia whiteboard system for improving mathematical problem solving. - Wu-Yuin Hwang; Nian-Shing Chen; Rueng-Lueng Hsu (Comput. Educ., 2006)

A Study of Intra-action and its Influence on Learning. - Wu-Yuin Hwang; Alexei Tretiakov; Huey-Wen Chou; Rueng-Lueng Hsu; Ching-Yuan Lee (ICALT, 2008)