Baranova S., and Korobko A. “Baranova S., Korobko A. Сorrelation of Politeness Markers in the English and Ukrainian Discourses”. Philological Treatises, vol. 6, no. 1, Apr. 2020, pp. 61-66, https://tractatus.sumdu.edu.ua/index.php/journal/article/view/437.