Butnariu, Anca, and Florin Alexandru Luca. “An Index of Sustainable Economic Welfare for Romania”. New Trends and Issues Proceedings on Humanities and Social Sciences 6, no. 8 (December 31, 2019): 1–10. Accessed April 25, 2024. https://un-pub.eu/ojs/index.php/pntsbs/article/view/4543.