ZUHAL AYHAN. The Effect of Aging Population on Pension Expenditures: A Country Comparative Econometric Analysis. Journal of Population Therapeutics and Clinical Pharmacology, [S. l.], v. 30, n. 16, p. 19–27, 2023. DOI: 10.47750/jptcp.2023.30.16.003. Disponível em: https://www.jptcp.com/index.php/jptcp/article/view/2208. Acesso em: 11 oct. 2025.