VAN DER WALT, J. L.; WOLHUTER, C. C. An examination of the potential of culturalhistorical activity theory (CHAT) for explaining transitions in national education systems. Acta Academica: Critical views on society, culture and politics, [S. l.], v. 50, n. 1, p. 104–125, 2018. DOI: 10.18820/24150479/aa50i1.6. Disponível em: https://journals.ufs.ac.za/index.php/aa/article/view/3557. Acesso em: 3 apr. 2025.