W.P. Visser, Van MWU tot Solidariteit: Geskiedenis van die Mynwerkersunie 1902-2002 Solidariteit, Centurion, 2008: An organisational and political history. Historia, [S. l.], v. 54, n. 1, 2021. Disponível em: https://upjournals.up.ac.za/index.php/historia/article/view/1086.. Acesso em: 18 may. 2024.