Rafindadi, A. A., and Z. Yusof. “Are the Periods of Currency Collapse an Impediment to Entrepreneurship and Entrepreneurial Haven? Evidence from Regional Comparison”. International Journal of Economics and Financial Issues, vol. 4, no. 4, Sept. 2014, pp. 886-08, https://www.econjournals.com/index.php/ijefi/article/view/924.