RENS, J. A.; VAN DER WALT, J. L.; VREKEN, N. J. Waarde-opvoeding in Skole: Kan dit? Moet dit?. Tydskrif vir Christelike Wetenskap | Journal for Christian Scholarship, [S. l.], v. 41, n. 3 - 4, p. 215–229, 2005. Disponível em: https://pubs.ufs.ac.za/index.php/tcw/article/view/59. Acesso em: 28 oct. 2025.