LAMBERT, S. R. The Siyavula case: Digital, collaborative text-book authoring to address educational disadvantage and resource shortage in South African schools. International Electronic Journal of Elementary Education, [S. l.], v. 11, n. 3, p. 279–290, 2019. Disponível em: https://iejee.com/index.php/IEJEE/article/view/704. Acesso em: 12 jan. 2025.