НОВІКОВ, В. QUALITY OF EDUCATION. PISA-2018: ASSESSMENT AND IMPROVEMENT POTENTIAL. Demography and social economy, [S. l.], v. 40, n. 2, p. 50–70, 2021. Disponível em: https://dse.org.ua/ojs/index.php/dse/article/view/32. Acesso em: 7 apr. 2025.