SMIT, Dirkie. Vervreemding en gawe – Sleutelmotiewe in die Heidelbergse Kategismus?. NGTT | Nederduitse Gereformeerde Teologiese Tydskrif, [S. l.], v. 54, n. 1&2, p. 1–16, 2013. DOI: 10.5952/54-1-2-320. Disponível em: https://ojs.reformedjournals.co.za/index.php/ngtt/article/view/693. Acesso em: 18 oct. 2025.