АКМАЛДІНОВА, О.М.; ПИСЬМЕННА, О.О. Problems of reforming education systems. Proceedings of Kyiv Aviation Institute. Series: Pedagogy. Psychology, [S. l.], v. 1, n. 3, p. 19, 2012. DOI: 10.18372/2411-264X.3.2133. Disponível em: https://jrnl.kai.edu.ua/index.php/VisnikPP/article/view/2133. Acesso em: 8 nov. 2026.