БОЙКО, М. Language situation in secondary education of Donetsk region (based on sociolinguistic research). Studia Philologica, [S. l.], n. 2, p. 7–14, 2021. DOI: 10.28925/2311-2425.2021.171. Disponível em: https://www.studiap.kubg.edu.ua/index.php/journal/article/view/399. Acesso em: 10 jan. 2026.