KASIAN, S. P. MIXED EDUCATION IN GENERAL SECONDARY EDUCATION. Actual Problems in the System of Education: General Secondary Education Institution – Pre-University Training – Higher Education Institution, [S. l.], v. 1, n. 1, p. 147–149, 2021. DOI: 10.18372/2786-5487.1.15850. Disponível em: https://jrnl.nau.edu.ua/index.php/APSE/article/view/15850. Acesso em: 28 nov. 2024.