Ptasznik, Bartosz. “Evaluating the Usefulness of the Learning Tools in Monolingual Online Dictionaries for Learners of English: Gauging the Preferences of Polish Students of English”. Lexikos 33, no. 1 (mei 19, 2023): 109-124. Geraadpleegd juli 3, 2024. https://lexikos.journals.ac.za/pub/article/view/1799.