E.G. Jansen se leiersrol in die Natalse Nasionale Party in die tydperk 1915-1924. Historia, [S. l.], v. 37, n. 1, 2021. DOI: 10.17159/hasa.v37i1.1733. Disponível em: http://www.jsaa.ac.za/index.php/historia/article/view/1733. Acesso em: 7 nov. 2025.