Hye Jin Kum

One-handed Thumb Text-message through different Vertical position of Touchscreen QWERTY keyboard

Frank Biocca, Calvin Jeongheon Lee, Hye Jin Kum, 2014 .

One-hand texting usability with iphone 5 touch-screen keyboard vertical position

Frank Biocca, Calvin Jeongheon Lee, Hye Jin Kum, 2014 .