AMRONI , Mourad; BERRADJEL, Ali. The degree to which twenty-first century skills are included in the mathematics textbook for the fourth-year average from the point of view of mathematics professors. Al-Jamie Journal In Psychological Studies and Educational Sciences, [S. l.], v. 8, n. 2, p. 524–546, 2023. Disponível em: https://journals.univ-msila.dz/index.php/ajpe/article/view/8623. Acesso em: 3 apr. 2026.