DOUBELL, F. B. Sonde met die wese van die sondeleer - versteurde daad, verhouding of toestand?. Acta Theologica, [S. l.], v. 26, n. 1, p. 79–94, 2006. DOI: 10.38140/at.v26i1.2107. Disponível em: https://journals.ufs.ac.za/index.php/at/article/view/2107. Acesso em: 25 mar. 2025.