Shaw, William George, Marc Mathews, and Johan Marais. “Holistic Analysis of the Effect on Electricity Cost in South Africa’s Platinum Mines When Varying Shift Schedules According to Time-of-Use Tariffs”. Journal of Energy in Southern Africa 30, no. 4 (December 5, 2019): 26–40. Accessed July 22, 2024. https://journals.assaf.org.za/index.php/jesa/article/view/5675.