KAĻĶE, Baiba; ĀBOLTIŅA, Līga; LĀMA, Gatis. Assessment of Secondary School Students’ Transversal Skills in Optimal and Highest-Level Mathematics. Journal of Education Culture and Society, [S. l.], v. 16, n. 1, p. 909–923, 2025. DOI: 10.15503/jecs2025.2.909.923. Disponível em: https://jecs.pl/index.php/jecs/article/view/1782. Acesso em: 3 jul. 2025.