Redd, Jennifer, and Denise Schmidt-Crawford. “The Potential of Building High School Students’ Vocabulary Using an IPod Touch and Gaming App”. Journal of Open, Flexible and Distance Learning 15, no. 2 (October 27, 2011): 55–67. Accessed April 24, 2026. https://jofdl.nz/index.php/JOFDL/article/view/50.