Gratitude in teacher leadership. Tydskrif vir Christelike Wetenskap | Journal for Christian Scholarship, [S. l.], v. 52, n. 3, p. 21–41, 2016. Disponível em: https://pubs.ufs.ac.za/index.php/tcw/article/view/402. Acesso em: 1 jul. 2026.