VAN DER WALT, Bennie J. The contours of sound leadership according to an integral Christian worldview. Tydskrif vir Christelike Wetenskap | Journal for Christian Scholarship, [S. l.], v. 55, n. 4, p. 185–212, 2019. Disponível em: https://pubs.ufs.ac.za/index.php/tcw/article/view/479. Acesso em: 17 sep. 2025.