Литвин, Валерія Володимирівна. “Valeriya Lytvyn. Quantitative Definition of Sustainable Development Level of Savings System”. REPORTER OF THE PRIAZOVSKYI STATE TECHNICAL UNIVERSITY Section: Economic sciences, no. 28 (November 6, 2014): 291–295. Accessed July 18, 2024. https://journals.uran.ua/ves_pstu/article/view/42675.