The Rating Model of Ukraine’s Regions According to the Level of Economic Development. Periodicals of Engineering and Natural Sciences, [S. l.], v. 7, n. 2, 2019. DOI: 10.21533/pen.v7.i2.1577. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/1577. Acesso em: 24 jun. 2026.