Humbatova, S. I., and N. G.-O. Hajiyev. “The Relationship Between Oil Prices and Real Estate Loans and Mortgage Loans in Azerbaijan”. International Journal of Energy Economics and Policy, vol. 11, no. 1, Dec. 2020, pp. 341-54, https://www.econjournals.com/index.php/ijeep/article/view/10532.