KASYAN , S. P. OPEN EDUCATION AT THE PRESENT STAGE: ESSENCE AND MAIN TRENDS. Actual Problems in the System of Education: General Secondary Education Institution – Pre-University Training – Higher Education Institution, [S. l.], v. 1, n. 2, p. 463–471, 2022. DOI: 10.18372/2786-5487.1.16631. Disponível em: https://jrnl.nau.edu.ua/index.php/APSE/article/view/16631. Acesso em: 16 apr. 2024.