KAPP, P. Serieuse selfstandige soeker: C M van den Heever (1902-1957). Acta Academica: Critical views on society, culture and politics, [S. l.], v. 35, n. 2, p. 1–34, 2003. DOI: 10.38140/aa.v35i2.788. Disponível em: https://journals.ufs.ac.za/index.php/aa/article/view/788. Acesso em: 22 mar. 2025.