Skjelde, Kimberly Marie, og Averil Coxhead. «Mind the Gap: Academic Vocabulary Knowledge As a Predictor of English Grades». Acta Didactica Norden 14, no. 3 (oktober 15, 2020): 20 sider. åpnet august 18, 2022. https://journals.uio.no/adnorden/article/view/7975.