Kostikova, Ilona, Liudmyla Holubnycha, Tetiana Shchokina, Natalia Soroka, Viktoriia Budianska, et Halyna Marykivska. 2019. A Role-Playing Game As a Means of Effective Professional English Teaching. Amazonia Investiga 8 (24), 414-25. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/1001.