Kirsten, J. F., and A. van der Veer. “Omgewingsvraagstukke En Internasionale Verhoudinge: ’n Historiese Perspektief”. Southern Journal for Contemporary History 24, no. 2 (December 10, 2019): 79–95. Accessed May 2, 2024. https://journals.ufs.ac.za/index.php/jch/article/view/4112.