ДИРДА, І. А. Principles of studying Ukrainian as a foreign language: problems of theory. Educational Dimension, Kryvyi Rih, Ukraine, v. 46, p. 146–151, 2015. DOI: 10.31812/educdim.v46i0.2516. Disponível em: https://journal.kdpu.edu.ua/ped/article/view/2516. Acesso em: 22 jul. 2024.