VIITALA, Hanna. Preliminary findings from a questionnaire on mathematics-related affect in primary school students. LUMAT-B: International Journal on Math, Science and Technology Education, [S. l.], v. 11, n. 2, p. 21, 2026. Disponível em: https://journals.helsinki.fi/lumatb/article/view/2878. Acesso em: 14 may. 2026.