BUYS, P. J. (Flip). Missions in the fear of God. Tydskrif vir Christelike Wetenskap | Journal for Christian Scholarship, [S. l.], v. 50, n. 3, p. 133–152, 2014. Disponível em: https://pubs.ufs.ac.za/index.php/tcw/article/view/351. Acesso em: 11 oct. 2025.