The Degree of Availability of Quality Standards in the Textbook from the Point of View of Middle School Teachers . El-Wahat Journal for Research and Studies, [S. l.], v. 18, n. 2, 2026. Disponível em: https://journals.univ-ghardaia.edu.dz/elwahat/article/view/1986. Acesso em: 6 may. 2026.