ČECHÁK, Petr. Financial relationships and dependencies in Czech secondary school mathematics textbooks. Scientia in educatione, [S. l.], v. 14, n. 2, p. 2–19, 2023. DOI: 10.14712/18047106.3121. Disponível em: https://medusa.is.cuni.cz/scied/article/view/3121. Acesso em: 4 dub. 2025.