Jeroen Koch, Abraham Kuyper. Een biografie. TSEG - The Low Countries Journal of Social and Economic History, [S. l.], v. 4, n. 1, p. 170–172, 2007. DOI: 10.18352/tseg.579. Disponível em: https://tseg.nl/article/view/7849.. Acesso em: 3 jul. 2024.