Shinkevich, Alexey I., Svetlana S. Kudryavtseva, and Irina G. Ershova. “Modelling of Energy Efficiency Factors of Petrochemical Industry”. International Journal of Energy Economics and Policy 10, no. 3 (March 17, 2020): 465–470. Accessed January 10, 2025. https://mail.econjournals.org.tr/index.php/ijeep/article/view/9396.