Bester, Piet. “A Positive Psychology Perspective on Pre-Deployment Fitness-for-Duty Evaluations for External Deployments: A Proposition for the South African National Defence Force”. Scientia Militaria - South African Journal of Military Studies 50, no. 3 (November 29, 2022): 25–45. Accessed June 11, 2026. https://www.journals.ac.za/index.php/pub/article/view/1379.