Evaluating the Input of Characters using Software Keyboards in a Mobile Learning Environment: A Comparison between Software Touchpanel Devices and Hardware Keyboards. - Akira Hasegawa; Tomiya Yamazumi; Satoshi Hasegawa; Masaru Miyao (WMUTE, 2012)

Strategy for Offering Test Questions Based on the Relationship between the Representation of Calculation Questions and their Difficulty. - Shin'ichi Tsumori; Tomiya Yamazumi; Kazunori Nishino (KES, 2016)

Configuration of the Calculation Question Training System: Offering Questions Based on the Relationship Between Question Presentation and Difficulty. - Shin'ichi Tsumori; Tomiya Yamazumi; Kazunori Nishino (KES, 2017)