KHALIL HAFEZ, B. The Strategic Importance of Ukraine in the Russian Geopolitical Perspective. College of Basic Education Research Journal, [S. l.], v. 19, n. 4, p. 539–569, 2023. DOI: 10.33899/berj.2023.181878. Disponível em: https://moss.uomosul.edu.iq/index.php/berj/article/view/39735. Acesso em: 26 oct. 2025.