Matthews, Joshua, and Kriss Lange. “Inadequate Aural Vocabulary Knowledge of High-Frequency Words: Can Mobile-Assisted Language Learning Help Solve the Problem?”. CALICO Journal 41, no. 2 (June 25, 2024): 99–121. Accessed July 4, 2024. https://journal.equinoxpub.com/Calico/article/view/23455.