I. . Kostadinova, A. . Todorova, S. . Ruskova, A. . Tomovska Misoska, M. . Letonja, and M. . Tomljanović, “Sustainability and the Circular Economy through the Eyes of Students: A Comparative Analysis among Bulgaria, North Macedonia, Slovenia and Croatia”, EJSD, vol. 14, no. 1, p. 1, Feb. 2025.