VAN DER WALT, J. L.; POTGIETER, F. J.; WOLHUTER, C. C. Positiewe Dissipline in die Hande van die Opvoeder. Tydskrif vir Christelike Wetenskap | Journal for Christian Scholarship, [S. l.], n. 1, p. 145–168, 2010. Disponível em: https://pubs.ufs.ac.za/index.php/tcw/article/view/237. Acesso em: 29 oct. 2025.