Duc-Harada P, Głuch D, Sonoyama S , editors. Changes and Modifications Occurring in the Category of Japanese Politeness. In: Japanese Civilization: Tokens and Manifestations [Internet]. Poland: Księgarnia Akademicka Publishing; 2019 [cited 2025 May 31]. Available from: https://books.akademicka.pl/publishing/catalog/book/21/chapter/22