Frankowiak, Joanna, i Agnieszka Lisiecka-Bednarczyk. 2022. „Motives and importance of using webcams in online higher education ”. Kwartalnik Naukowy Fides et Ratio 50 (2): 62-72. https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/1084.