Luka, Ineta. «Implementation of a Multilingual Blended Learning Course for Non-Formal and Informal Adult Learning During the COVID-19 Pandemic». International Journal of Research in E-learning 8, no. 2 (декабрь 20, 2022): 1–23. просмотрено май 7, 2025. https://trrest.vot.pl/ojsus/index.php/IJREL/article/view/14376.