Çağlayan-Akay, Ebru, and Muhammed H. Van. “Determinants of the Levels of Development Based on the Human Development Index:Bayesian Ordered Probit Model”. International Journal of Economics and Financial Issues, vol. 7, no. 5, Oct. 2017, pp. 425-31, https://econjournals.com./index.php/ijefi/article/view/5271.