БУРДЯК, В. І. TRANSFORMATION IN EDUCATION AND CULTURE IN THE POST-COMMUNIST REPUBLIC BULGARIA. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY Idea, [S. l.], n. 3(27), p. 122–133, 2019. Disponível em: https://pvntsh.nung.edu.ua/index.php/idea/article/view/630. Acesso em: 11 dec. 2025.