Samosir, Omas Bulan, and Wilson Rajagukguk. “Demographic and Competitiveness Acceleration and Government Sustainable Advantage in Indonesia”. International Journal of Economics and Financial Issues 7, no. 4 (July 27, 2017): 113–118. Accessed December 5, 2022. https://www.econjournals.com/index.php/ijefi/article/view/4805.