Candelo Viafara , Juan Manuel, María del Pilar Rivera Diaz, and Jairo Andres Torres Daravina. “The Impact Analysis of the Variation in the Price of Oil and the Exchange Rate on the Optimal Quantity of Orders in the Zinc Importing Companies in Colombia”. International Journal of Energy Economics and Policy 12, no. 6 (November 28, 2022): 194–201. Accessed December 4, 2024. https://econjournals.com./index.php/ijeep/article/view/13541.