Ruegg, Rachael, and Cherie Brown. “‘Digging Deep’: Using the Task Involvement Load Hypothesis to Analyse Textbooks for Vocabulary Learning Potential”. Lingua Pedagogia 1, no. 1 (March 19, 2019): 17–28. Accessed January 27, 2026. https://journal.uny.ac.id/index.php/lingua-pedagogia/article/view/18481.