RAATH, A. W. G.; SWARTZ, N. P. Calling, Estate and Virtue: Martin Luther’s Response to the Scholastic Views on the Virtues of Office. Tydskrif vir Christelike Wetenskap | Journal for Christian Scholarship, [S. l.], v. 41, n. 1 - 2, p. 125–159, 2005. Disponível em: https://pubs.ufs.ac.za/index.php/tcw/article/view/44. Acesso em: 5 oct. 2025.