Ngo Ndjama, Danielle, and Johan van der Westhuizen. “The Effects of Demographic Factors on Professional Career Success: An Investigation of Higher Education Staff in South Africa”. African Journal of Inter Multidisciplinary Studies, vol. 6, no. 1, Feb. 2024, pp. 1-13, https://ojs.sabinet.co.za/index.php/ajims/article/view/1961.