AKIN, C. S. ., C. . AYTUN, and B. G. . AKTAKAS. “The Impact of Economic Freedom Upon Economic Growth: An Application on Different Income Groups”. Asian Economic and Financial Review, vol. 4, no. 8, Aug. 2014, pp. 1024-39, https://archive.aessweb.com/index.php/5002/article/view/1233.