Gander Press ReviewTim Bass, Brett Berk, Robert Burton, Kim Chinquee, Wyn Cooper · First published 2008Open the Tome
Norton Interactive Aural SkillsErik Lund, Brett Terry, David Berk · First published 2006Open the Tome
Computer-Assisted Software Project for Aural Skills ReinforcementErik Lund, Brett Terry, David Berk · First published 1999Open the Tome