Humbatova, Sugra Ingilab, and Natig Gadim-Ogli Hajiyev. “The Impact of Oil Factor on the Car Import in Azerbaijan”. International Journal of Energy Economics and Policy, vol. 10, no. 4, May 2020, pp. 450-62, https://mail.econjournals.com/index.php/ijeep/article/view/9178.