De Wit, Martin, Matthew Heun, and Douglas Crookes. “An Overview of Salient Factors, Relationships and Values to Support Integrated Energy-Economic Systems Dynamic Modeling”. Journal of Energy in Southern Africa 29, no. 4 (December 3, 2018): 27–36. Accessed July 22, 2024. https://journals.assaf.org.za/index.php/jesa/article/view/3417.