Açıkgöz, E., H. Uygurtürk, and T. Korkmaz. “Analysis of Factors Affecting Growth of Pension Mutual Funds in Turkey”. International Journal of Economics and Financial Issues, vol. 5, no. 2, Apr. 2015, pp. 427-33, https://econjournals.com/index.php/ijefi/article/view/1057.