Improvement of Japanese adults' English speaking skills via experiences speaking to a robot. - Takamasa Iio; Ryota Maeda; Kohei Ogawa; Yuichiro Yoshikawa; Hiroshi Ishiguro; Kaori Suzuki; Tomohiro Aoki; Miharu Maesaki; Mika Hama (J. Comput. Assist. Learn., 2019)